《电子商务 E-business》阅读文献：Value creation in e-business

Strategic Management Journal smat.Mgm.J.22:493-520(2001) DO:10.1002/smj.187 VALUE CREATION IN E-BUSINESS RAPHAEL AMITI* and CHRISTOPH ZoTT he Wharton School, University of Pennsylvania, Philadelphia, Pennsylvania 2INSEAD, Fontainebleau Cedex, france e explore the theoretical foundations of value in e-business by examining how 59 American and European e-businesses that have become publicly traded corporations create value. We observe that in e-business new can be created by the ways in which ansactions are enabled. Grounded in the rich data obtained from case study analyses and in the received theory in entrepreneurship and strategic management, we develop a model of the ources of value creation. The model suggests that the value creation potential of e-businesses inges on four interdependent dimensions, namely: efficiency, complementarities, lock-in, and overy. Our findings suggest that no single entrepreneurship or strategic management theory can fully explain the value creation potential of e-business. Rather, an integration of the received theoretical perspectives on value creation is needed. To enable such an integration, we offer the business model construct as a unit of analysis for future research on value creation in e-business. A business model depicts the design of transaction content, structure, propose that a firm's business model is an important locus of innovation and a crucial source of value creation for the firm and its suppliers, partners, and customers. Copyright o 2001 John Wiley Sons, Ltd INTRODUCTION likely that over 93 percent of U.S. firms will have some fraction of their business trade conduc As we enter the twenty-first century, business ted over the Internet. Although U.S. firms are conducted over the Internet(which we refer to considered world leaders in e-business, the rapid ase-business'), with its dynamic, rapidly grow- growth of the number of businesses that use the ing, and highly competitive characteristics, prom- Internet is a global phenomenon. Over the period ises new avenues for the creation of wealth. of 1999 to 2001, Europe is expected to bridge Established firms are creating new online busi- the e-business gap with the United States by nesses, while new ventures are exploiting the experiencing triple-digit growth in this area. By opportunities the Internet provides. In 1999, the end of 2000, European firms'e-retail revenues goods sold over the Internet by U.S. firms were are estimated to be worth $8.5 billion, increasing estimated to be $109 billion and by the end of to an estimated $19.2 billion by 2001, as com- 2000 should reach $251 billion. By 2002, it is pared to North Americas figures of $40.5 billion Key words: value creation; e-business; business mode Correspondence to: R. Amit, The Wharton School, University of Pennsylvania, 3620 Locust Walk, Philadelphia, PA 19104- 6370,U.SA Source: Forrester Research Report, ' eMarketplaces Boost Source: Forrester Research B2B Trade, February 2000 Copyright o 2001 John Wiley Sons, Ltd

Strategic Management Journal Strat. Mgmt. J., 22: 493–520 (2001) DOI: 10.1002/smj.187 VALUE CREATION IN E-BUSINESS RAPHAEL AMIT1 * and CHRISTOPH ZOTT2 1 The Wharton School, University of Pennsylvania, Philadelphia, Pennsylvania, U.S.A. 2 INSEAD, Fontainebleau Cedex, France We explore the theoretical foundations of value creation in e-business by examining how 59 American and European e-businesses that have recently become publicly traded corporations create value. We observe that in e-business new value can be created by the ways in which transactions are enabled. Grounded in the rich data obtained from case study analyses and in the received theory in entrepreneurship and strategic management, we develop a model of the sources of value creation. The model suggests that the value creation potential of e-businesses hinges on four interdependent dimensions, namely: efficiency, complementarities, lock-in, and novelty. Our findings suggest that no single entrepreneurship or strategic management theory can fully explain the value creation potential of e-business. Rather, an integration of the received theoretical perspectives on value creation is needed. To enable such an integration, we offer the business model construct as a unit of analysis for future research on value creation in e-business. A business model depicts the design of transaction content, structure, and governance so as to create value through the exploitation of business opportunities. We propose that a firm’s business model is an important locus of innovation and a crucial source of value creation for the firm and its suppliers, partners, and customers. Copyright  2001 John Wiley & Sons, Ltd. INTRODUCTION As we enter the twenty-first century, business conducted over the Internet (which we refer to as ‘e-business’), with its dynamic, rapidly grow￾ing, and highly competitive characteristics, prom￾ises new avenues for the creation of wealth. Established firms are creating new online busi￾nesses, while new ventures are exploiting the opportunities the Internet provides. In 1999, goods sold over the Internet by U.S. firms were estimated to be $109 billion and by the end of 2000 should reach $251 billion.1 By 2002, it is Key words: value creation; e-business; business model *Correspondence to: R. Amit, The Wharton School, University of Pennsylvania, 3620 Locust Walk, Philadelphia, PA 19104- 6370, U.S.A. 1 Source: Forrester Research. Copyright  2001 John Wiley & Sons, Ltd. likely that over 93 percent of U.S. firms will have some fraction of their business trade conduc￾ted over the Internet.2 Although U.S. firms are considered world leaders in e-business, the rapid growth of the number of businesses that use the Internet is a global phenomenon. Over the period of 1999 to 2001, Europe is expected to bridge the e-business gap with the United States by experiencing triple-digit growth in this area. By the end of 2000, European firms’ e-retail revenues are estimated to be worth $8.5 billion, increasing to an estimated $19.2 billion by 2001, as com￾pared to North America’s figures of $40.5 billion (for 2000) which are expected to increase to 2 Source: Forrester Research Report, ‘eMarketplaces Boost B2B Trade,’ February 2000

494 R. Amit and C. Zott S67.6 billion(for 2001). The increase in the the context of the emergence of virtual markets number of e-business transactions at major web In the data and methods section that follows the sites(60,000 per day in 1999 compared to 29,000 theory section, we describe the grounded theory per day in 1998) highlights the extraordinary development methodology (Glaser and Strauss growth and transformation of this new global 1967) that we used to determine which of the business landscape sources of value suggested by the literature are E-business has the potential of generating germane to e-businesses. The terms ' source of tremendous new wealth, mostly through entrepre- value creation'andvalue driver'(which are used neurial start-ups and corporate ventures. It is also interchangeably in this paper) refer to any factor transforming the rules of competition for estab- that enhances the total value created by an e lished businesses in unprecedented ways. One business. This value, in turn, is the sum of all would thus expect e-business to have attracted values that can be appropriated by the participants the attention of scholars in the fields of in e-business transactions(Brandenburger and entrepreneurship and strategic management. Stuart, 1996). The data and methods section is Indeed, the advent of e-business presents a strong followed by a presentation of the findings that for the confluence of the entrepreneurship emerged from our analysis of 59 e-businesses d strategy research streams, as advocated by Although we do not go into detail on each of Hitt and Ireland(2000)and by McGrath and the businesses studied, we use examples from our MacMillan(2000). Yet, academic research on e- exploration to illustrate the concepts that emerged business is currently sparse. The literature to date Our analysis reveals four primary and interrelated has neither articulated the central issues related value drivers of e-businesses: novelty, lock-in, to this new phenomenon, nor has it developed complementarity, and efficiency. We observe that theory that captures the unique features of vir- value creation in e-business goes beyond the tual markets value that can be realized through the configu- This paper attempts to fill this theoretical gap ration of the value chain(Porter, 1985), the for by seeking to identify the sources of value cre- mation of strategic networks among firms(Dyer ation in e-business. To do this, we begin the and Singh, 1998), or the exploitation of firm paper with a theory section that highlights the specific core competencies(Barney, 1991).E- value creation potential embedded in virtual mar- business firms often innovate through novel kets, and that explores the sources of value cre- exchange mechanisms and transaction structures ation in the received entrepreneurship and stra- not present in firms that are more traditional tegic management literatures. Specifically, we Throughout the discussion of the value drivers of review how value is created within the theoretical e-business we include some observations regard- views of the value chain framework (Porter, ing the interrelationships among the four drivers. 1985), Schumpeter's theory of creative destruc- In the discussion section of the paper, we build tion(Schumpeter, 1942), the resource-based view on our findings to offer some new ways of of the firm(e.g, Barney, 1991), strategic network integrating the entrepreneurship and strategic theory(e.g, Dyer and Singh, 1998), and trans- management literatures. Our central observations action costs economics(Williamson, 1975). We are that no single entrepreneurship or strategic also discuss the applicability of these theories in management theory can fully explain the value creation potential of e-business. Rather, each of 3 Source: Forrester Research Report,"Global eCommerce the theories offers an important insight into one pproaches Hypergrowth, April aspect of value creation in e-business. In an 4 Source: Jupiter Communications(2000). s While e-business is still growing at an attempt to contribute to the work that seeks to rate,we are now witnessing a slowdown in the Business-to Integrate entrepreneurship and strategic man- Consumer(B2C) growth rate and an acceleration of the agement perspectives(e.g, Jones, Hesterly, and Business-to-Business(B2B)growth rate. The B2C segment Borgatti. 1997: Gulati. 1999 Hitt and Ireland pared to an annual growth rate of 110 percent in the B2B 2000: McGrath and MacMillan, 2000),we pro- segment (s oure e the bar ner fGreupts ht s eriu mnt is pose the business model construct as a unifying percent of the total trade, while online retail (B2C)is expected arising from multiple sources. The business model to represent less then 7 percent of total retail at that time. depicts the design of transaction content, Copyright o 2001 John Wiley Sons, Ltd, Strat, Mgmt. J. 22: 493-52

494 R. Amit and C. Zott $67.6 billion (for 2001).3 The increase in the number of e-business transactions at major web sites (60,000 per day in 1999 compared to 29,000 per day in 1998)4 highlights the extraordinary growth and transformation of this new global business landscape.5 E-business has the potential of generating tremendous new wealth, mostly through entrepre￾neurial start-ups and corporate ventures. It is also transforming the rules of competition for estab￾lished businesses in unprecedented ways. One would thus expect e-business to have attracted the attention of scholars in the fields of entrepreneurship and strategic management. Indeed, the advent of e-business presents a strong case for the confluence of the entrepreneurship and strategy research streams, as advocated by Hitt and Ireland (2000) and by McGrath and MacMillan (2000). Yet, academic research on e￾business is currently sparse. The literature to date has neither articulated the central issues related to this new phenomenon, nor has it developed theory that captures the unique features of vir￾tual markets. This paper attempts to fill this theoretical gap by seeking to identify the sources of value cre￾ation in e-business. To do this, we begin the paper with a theory section that highlights the value creation potential embedded in virtual mar￾kets, and that explores the sources of value cre￾ation in the received entrepreneurship and stra￾tegic management literatures. Specifically, we review how value is created within the theoretical views of the value chain framework (Porter, 1985), Schumpeter’s theory of creative destruc￾tion (Schumpeter, 1942), the resource-based view of the firm (e.g., Barney, 1991), strategic network theory (e.g., Dyer and Singh, 1998), and trans￾action costs economics (Williamson, 1975). We also discuss the applicability of these theories in 3 Source: Forrester Research Report, ‘Global eCommerce Approaches Hypergrowth,’ April 2000. 4 Source: Jupiter Communications (2000). 5 While e-business is still growing at an overall impressive rate, we are now witnessing a slowdown in the Business-to￾Consumer (B2C) growth rate and an acceleration of the Business-to-Business (B2B) growth rate. The B2C segment has grown at an annual rate of 76 percent since 1998 com￾pared to an annual growth rate of 110 percent in the B2B segment (source: the Gartner Group). This argument is additionally strengthened by the forecasts that predict B2B e￾business to reach $2.7 trillion in 2004, representing over 17 percent of the total trade, while online retail (B2C) is expected to represent less then 7 percent of total retail at that time. Copyright  2001 John Wiley & Sons, Ltd. Strat. Mgmt. J., 22: 493–520 (2001) the context of the emergence of virtual markets. In the data and methods section that follows the theory section, we describe the grounded theory development methodology (Glaser and Strauss, 1967) that we used to determine which of the sources of value suggested by the literature are germane to e-businesses. The terms ‘source of value creation’ and ‘value driver’ (which are used interchangeably in this paper) refer to any factor that enhances the total value created by an e￾business. This value, in turn, is the sum of all values that can be appropriated by the participants in e-business transactions (Brandenburger and Stuart, 1996). The data and methods section is followed by a presentation of the findings that emerged from our analysis of 59 e-businesses. Although we do not go into detail on each of the businesses studied, we use examples from our exploration to illustrate the concepts that emerged. Our analysis reveals four primary and interrelated value drivers of e-businesses: novelty, lock-in, complementarity, and efficiency. We observe that value creation in e-business goes beyond the value that can be realized through the configu￾ration of the value chain (Porter, 1985), the for￾mation of strategic networks among firms (Dyer and Singh, 1998), or the exploitation of firm￾specific core competencies (Barney, 1991). E￾business firms often innovate through novel exchange mechanisms and transaction structures not present in firms that are more traditional. Throughout the discussion of the value drivers of e-business, we include some observations regard￾ing the interrelationships among the four drivers. In the discussion section of the paper, we build on our findings to offer some new ways of integrating the entrepreneurship and strategic management literatures. Our central observations are that no single entrepreneurship or strategic management theory can fully explain the value creation potential of e-business. Rather, each of the theories offers an important insight into one aspect of value creation in e-business. In an attempt to contribute to the work that seeks to integrate entrepreneurship and strategic man￾agement perspectives (e.g., Jones, Hesterly, and Borgatti, 1997; Gulati, 1999; Hitt and Ireland, 2000; McGrath and MacMillan, 2000), we pro￾pose the business model construct as a unifying unit of analysis that captures the value creation arising from multiple sources. The business model depicts the design of transaction content, struc-

Value Creation in E-Business 495 ture, and governance so as to create value through As an electronic network with open standards, the exploitation of business opportunities. By the Internet supports the emergence of virtual addressing the central issues in e-business that communities(Hagel and Armstrong, 1997)and emerge at the intersection of strategic man- commercial arrangements that disregard tra- agement and entrepreneurship, we hope to con- ditional boundaries between firms along the value tribute to theory development in both fields. The chain. Business processes can be shared among paper concludes with final observations and firms from different industries, even without any avenues for further research awareness of the end customers. As more infor mation about products and services becomes instantly available to customers, and as infor THEORY mation goods(Shapiro and Varian, 1999)are transmitted over the Internet, traditional inter Before reviewing the sources of value creation mediary businesses and information brokers are implied by a range of theoretical perspectives in circumvented ('dis-intermediated), and the guid the entrepreneurship and strategic management ing logic behind some traditional industries(e.g literatures, we begin this section by highlighting travel agencies) begins to disintegrate. At the the value creation potential embedded in virtual same time, new ways of creating value are opened markets. Our literature review then focuses on up by the new forms of connecting buyers and value chain analysis, Schumpeterian innovation, sellers in existing markets (re-intermediation), the resource-based view of the firm, strategic and by innovative market mechanisms (e.g network theory, and transaction cost economics. reverse market auctions) and economic For each of these perspectives, we describe the exchanges main theoretical approach, expose the main There are several other characteristics of virtual sources of value creation suggested, and discuss markets that, when considered together, have a the theoretical implications of the emergence of profound effect on how value-creating economic irtual markets transactions are structured and conducted. These include the ease of extending one's product range Virtual markets to include complementary products, improved access to complementary assets (i.e,resources, Virtual markets refer to settings in which business capabilities, and technologies), new forms of col transactions are conducted via open networks laboration among firms (e.g, affiliate programs), based on the fixed and wireless Internet infra- the potential reduction of asymmetric information structure. These markets are characterized by high among economic agents through the Internet connectivity(Dutta and Segev, 1999),a focus on medium, and real-time customizability of products transactions(Balakrishnan, Kumara, and Sundare- and services. Industry boundaries are thus easily san, 1999), the importance of information goods crossed as value chains are being redefined and networks(Shapiro and Varian, 1999), and (Sampler, 1998). This in turn may affect the high reach and richness of information (Evans scope of the firm as opportunities for outsourcin and Wurster, 1999). Reach refers to the number arise in the presence of reduced transaction costs of people and products that are reachable quickly and increased returns to scale(see Lucking-Reiley nd cheaply in virtual markets; richness refers to and Spulber, 2001; for example, many companies the depth and detail of information that can be now find it economically viable to outsource their accumulated, offered, and exchanged between IT services) market participants. Virtual markets have unprec- In summary, the characteristics of virtual mar- dented reach because they are characterized by kets combined with the vastly reduced costs of a near lack of geographical boundaries information proce allow for profound The difficulty that some e-business firms experience in estab- lishing a pan-European presence indicates that the certain barriers to business, cample, to local 7 According to The Economist, 23 September 2000(A survey and tastes. or to cross- border However the of the new economy, p. 6) the of geographical boundar ars to be vastly reduced electronically has dropped from $150,000 to $O 12 in the past relative to the traditional "bricks-and- worl Copyright o 2001 John Wiley Sons, Ltd, sma. Mgmt. J.22:493-520(2001)

Value Creation in E-Business 495 ture, and governance so as to create value through the exploitation of business opportunities. By addressing the central issues in e-business that emerge at the intersection of strategic man￾agement and entrepreneurship, we hope to con￾tribute to theory development in both fields. The paper concludes with final observations and avenues for further research. THEORY Before reviewing the sources of value creation implied by a range of theoretical perspectives in the entrepreneurship and strategic management literatures, we begin this section by highlighting the value creation potential embedded in virtual markets. Our literature review then focuses on value chain analysis, Schumpeterian innovation, the resource-based view of the firm, strategic network theory, and transaction cost economics. For each of these perspectives, we describe the main theoretical approach, expose the main sources of value creation suggested, and discuss the theoretical implications of the emergence of virtual markets. Virtual markets Virtual markets refer to settings in which business transactions are conducted via open networks based on the fixed and wireless Internet infra￾structure. These markets are characterized by high connectivity (Dutta and Segev, 1999), a focus on transactions (Balakrishnan, Kumara, and Sundare￾san, 1999), the importance of information goods and networks (Shapiro and Varian, 1999), and high reach and richness of information (Evans and Wurster, 1999). Reach refers to the number of people and products that are reachable quickly and cheaply in virtual markets; richness refers to the depth and detail of information that can be accumulated, offered, and exchanged between market participants. Virtual markets have unprec￾edented reach because they are characterized by a near lack of geographical boundaries.6 6 The difficulty that some e-business firms experience in estab￾lishing a pan-European presence indicates that there still exist certain barriers to business, due, for example, to local languages and tastes, or to cross-border logistics. However, the importance of geographical boundaries still appears to be vastly reduced relative to the traditional ‘bricks-and-mortar’ world. Copyright  2001 John Wiley & Sons, Ltd. Strat. Mgmt. J., 22: 493–520 (2001) As an electronic network with open standards, the Internet supports the emergence of virtual communities (Hagel and Armstrong, 1997) and commercial arrangements that disregard tra￾ditional boundaries between firms along the value chain. Business processes can be shared among firms from different industries, even without any awareness of the end customers. As more infor￾mation about products and services becomes instantly available to customers, and as infor￾mation goods (Shapiro and Varian, 1999) are transmitted over the Internet, traditional inter￾mediary businesses and information brokers are circumvented (‘dis-intermediated’), and the guid￾ing logic behind some traditional industries (e.g., travel agencies) begins to disintegrate. At the same time, new ways of creating value are opened up by the new forms of connecting buyers and sellers in existing markets (‘re-intermediation’), and by innovative market mechanisms (e.g., reverse market auctions) and economic exchanges. There are several other characteristics of virtual markets that, when considered together, have a profound effect on how value-creating economic transactions are structured and conducted. These include the ease of extending one’s product range to include complementary products, improved access to complementary assets (i.e., resources, capabilities, and technologies), new forms of col￾laboration among firms (e.g., affiliate programs), the potential reduction of asymmetric information among economic agents through the Internet medium, and real-time customizability of products and services. Industry boundaries are thus easily crossed as value chains are being redefined (Sampler, 1998). This in turn may affect the scope of the firm as opportunities for outsourcing arise in the presence of reduced transaction costs and increased returns to scale (see Lucking-Reiley and Spulber, 2001; for example, many companies now find it economically viable to outsource their IT services). In summary, the characteristics of virtual mar￾kets combined with the vastly reduced costs of information processing7 allow for profound changes in the ways companies operate and in 7 According to The Economist, 23 September 2000 (‘A survey of the new economy’, p. 6) the cost of sending 1 trillion bits electronically has dropped from $150,000 to $0.12 in the past 30 years

496 R. Amit and C. Zott how economic exchanges are structured. They online. By doing So, it was able to add value to also open new opportunities for wealth creation. sales and fulfillment activities. Stabell and Fjeld Thus, conventional theories of how value is cre- stad (1998)found the value chain model more ated are being challenge suitable for the analysis of production and manu- facturing firms than for service firms where the Value chain analysis resulting chain does not fully capture the essence of the value creation mechanisms of the firm Porter's(1985) value chain framework analyzes Citing the example of an insurance company, value creation at the firm level. Value chain they ask: 'What is received, what is produced analysis identifies the activities of the firm and what is shipped? ' ( Stabell and Fjeldstad, 1998 then studies the economic implications of those 414). Similar questions can be asked about the activitiesItincludesfoursteps:(1)definingtheactivitiesofe-businessfirmssuchasAmazon.com strategic business unit,(2) identifying critical and about e-businesses whose main transactions activities, (3)defining products, and(4) determin- involve the processing of information flows ing the value of an activity. The main questions Building on this insight, Rayport and Sviokla that the value chain framework addresses are as (1995) propose avirtual value chain that follows:(1)what activities should a firm perform, includes a sequence of gathering, organizing, se- and how? and(2) what is the configuration of lecting, synthesizing, and distributing information. the firm's activities that would enable it to add While this modification of the value chain concept value to the product and to compete in its indus- corresponds better to the realities of virtual mar try? Value chain analysis explores the primary kets, and in particular to the importance of infor- activities, which have a direct impact on value mation goods(Shapiro and Varian, 1999), there creation, and support activities, which affect value may still be room to capture the richness of e- only through their impact on the performance of business activity more fully. Valuecreation the primary activities. Primary activities involve opportunities in virtual markets may result from the creation of physical products and include new combinations of information, physical prod- inbound logistics, operations, outbound logistics, ucts and services, innovative configurations of marketing and sales, and service transactions,and the reconfiguration and inte- Porter defines value as"the amount buyers are gration of resources, capabilities, roles and illing to pay for what a firm provides them. relation among suppliers, partners and cus- Value is measured by total revenue.. A firm is tomers profitable if the value it commands exceeds the costs involved in creating the product'(Porter 1985: 38 ). Value can be created by differentiation chumpeterian innovation along every step of the value chain, through Schumpeter(1934) pioneered the theory of eco- activities resulting in products and services that nomic development and new value creation lower buyers' costs or raise buyers' performance. through the process of technological change and Drivers of product differentiation, and hence innovation. He viewed technological development sources of value creation, are policy choices as discontinuous change and disequilibrium (what activities to perform and how), linkages resulting from innovation. Schumpeter identified (within the value chain or with suppliers and several sources of innovation (hence, value channels), timing(of activities), location, sharing creation) including the introduction of new goods of activities among business units, learning, inte- or new production methods, the creation of new gration, scale and institutional factors(see Porter, markets, the discovery of new supply sources, and 1985: 124-127). Porter and Millar(1985) argue the reorganization of industries. He introduced that information technology creates value by sup- the notion of creative destruction'( Schumpeter, porting differentiation strategies 1942) noting that following technological change Value chain analysis can be helpful in examin- certain rents become available to entrepreneurs ing value creation in virtual markets. For which later diminish as innovations become estab- example, Amazon. com decided to build its own lished practices in economic life. These rents warehouses in order to increase the speed and were later named Schumpeterian rents, defined as reliability of the delivery of products ordered rents stemming from risky initiatives and Copyright o 2001 John Wiley Sons, Ltd, Strat, Mgmt. J. 22: 493-52

496 R. Amit and C. Zott how economic exchanges are structured. They also open new opportunities for wealth creation. Thus, conventional theories of how value is cre￾ated are being challenged. Value chain analysis Porter’s (1985) value chain framework analyzes value creation at the firm level. Value chain analysis identifies the activities of the firm and then studies the economic implications of those activities. It includes four steps: (1) defining the strategic business unit, (2) identifying critical activities, (3) defining products, and (4) determin￾ing the value of an activity. The main questions that the value chain framework addresses are as follows: (1) what activities should a firm perform, and how? and (2) what is the configuration of the firm’s activities that would enable it to add value to the product and to compete in its indus￾try? Value chain analysis explores the primary activities, which have a direct impact on value creation, and support activities, which affect value only through their impact on the performance of the primary activities. Primary activities involve the creation of physical products and include inbound logistics, operations, outbound logistics, marketing and sales, and service. Porter defines value as ‘the amount buyers are willing to pay for what a firm provides them. Value is measured by total revenue … A firm is profitable if the value it commands exceeds the costs involved in creating the product’ (Porter, 1985: 38). Value can be created by differentiation along every step of the value chain, through activities resulting in products and services that lower buyers’ costs or raise buyers’ performance. Drivers of product differentiation, and hence sources of value creation, are policy choices (what activities to perform and how), linkages (within the value chain or with suppliers and channels), timing (of activities), location, sharing of activities among business units, learning, inte￾gration, scale and institutional factors (see Porter, 1985: 124–127). Porter and Millar (1985) argue that information technology creates value by sup￾porting differentiation strategies. Value chain analysis can be helpful in examin￾ing value creation in virtual markets. For example, Amazon.com decided to build its own warehouses in order to increase the speed and reliability of the delivery of products ordered Copyright  2001 John Wiley & Sons, Ltd. Strat. Mgmt. J., 22: 493–520 (2001) online. By doing so, it was able to add value to sales and fulfillment activities. Stabell and Fjeld￾stad (1998) found the value chain model more suitable for the analysis of production and manu￾facturing firms than for service firms where the resulting chain does not fully capture the essence of the value creation mechanisms of the firm. Citing the example of an insurance company, they ask: ‘What is received, what is produced, what is shipped?’ (Stabell and Fjeldstad, 1998: 414). Similar questions can be asked about the activities of e-business firms such as Amazon.com and about e-businesses whose main transactions involve the processing of information flows. Building on this insight, Rayport and Sviokla (1995) propose a ‘virtual’ value chain that includes a sequence of gathering, organizing, se￾lecting, synthesizing, and distributing information. While this modification of the value chain concept corresponds better to the realities of virtual mar￾kets, and in particular to the importance of infor￾mation goods (Shapiro and Varian, 1999), there may still be room to capture the richness of e￾business activity more fully. Value creation opportunities in virtual markets may result from new combinations of information, physical prod￾ucts and services, innovative configurations of transactions, and the reconfiguration and inte￾gration of resources, capabilities, roles and relationships among suppliers, partners and cus￾tomers. Schumpeterian innovation Schumpeter (1934) pioneered the theory of eco￾nomic development and new value creation through the process of technological change and innovation. He viewed technological development as discontinuous change and disequilibrium resulting from innovation. Schumpeter identified several sources of innovation (hence, value creation) including the introduction of new goods or new production methods, the creation of new markets, the discovery of new supply sources, and the reorganization of industries. He introduced the notion of ‘creative destruction’ (Schumpeter, 1942) noting that following technological change certain rents become available to entrepreneurs, which later diminish as innovations become estab￾lished practices in economic life. These rents were later named Schumpeterian rents, defined as rents stemming from risky initiatives and entre-

Value Creation in E-Business 497 preneurial insights in uncertain and complex plementary and specialized resources and capa- environments, which are subject to self- bilities(which are heterogeneous within an indus- destruction as knowledge diffuses. In his early try, scarce, durable, not easily traded, and difficul work, Schumpeter (1934, 1939) highlighted the to imitate), may lead to value creation(Penrose contribution of individual entrepreneurs and 1959: Wernerfelt, 1984: Barney, 1991; Peteraf placed an emphasis on the innovations and ser- 1993; Amit and Schoemaker, 1993). The vices rendered by the new combinations of tion is that, even in equilibrium, firms may differ resources in terms of the resources and capabilities they In Schumpeter's theory, innovation is the control, and that such asymmetric firms may source of value creation. Schumpeterian inno- coexist until some exogenous change or Schum vation emphasizes the importance of technology peterman shock occurs. Hence, RBV theory postu- and considers novel combinations of resources lates that the services rendered by the firms (and the services they provide) as the foundations unique bundle of resources and capabilities may of new products and production methods. These, lead to value creation in turn, lead to the transformation of markets and A firms resources and capabilities are valu industries, and hence to economic development. able if, and only if, they reduce a firms costs Teece(1987)adds that the effectiveness of pro- or increase its revenues compared to what would tective property rights(appropriability regime) have been the case if the firm did not possess and complementary assets can add to the value those resources'( Barney, 1997: 147). While the creation potential of innovations. Moran and Gho- RBV literature has often been concerned with shal (1999) highlight the role of economic questions of value appropriation and sustainability exchange through which the latent value imbed- of competitive advantage(e.g, Barney, 1991),a ded in the new combination of resources is realiz- recent extension to RBV, the dynamic capabilities able. Hitt and Ireland(2000)contribute to this approach (Teece, Pisano, and Shuen, 1997) theory by addressing the determinants and conse- explores how valuable resource positions are built quences of the innovation process and by linking and acquired over time. Dynamic capabilities are this process with the strategic management of rooted in a firms managerial and organizational growing enterprises processes, such as those aimed at coordination As innovative entrepreneurs exploit new oppor- integration, reconfiguration, or transformation tunities for value creation, the evolution of the (Teece et al., 1997; Eisenhardt and Martin, 2000) resulting virtual markets can be described in terms or learning (Lei, Hitt, and Bettis, 1996). These of Schumpeter's model of creative destruction. capabilities enable firms to create and capture However, virtual markets broaden the notion of Schumpeterian rents (Teece et al, 1997) innovation since they span firm and industry Examples of such value-creating processes are boundaries, involve new exchange mechanisms product development, strategic decision-making. and unique transaction methods (rather than alliance formation, knowledge creation, and capa merely new products, or production processes), bilities transfer(Eisenhardt and Martin, 2000) and foster new forms of collaborations among The emergence of virtual markets clearly opens firms. Furthermore, while innovation is certainly up new sources of value creation since relational a major driving force of the economic develop- capabilities and new complementarities among a ment of new and established markets, it may not firms resources and capabilities can be exploited be the only source of value creation in virtual (e.g, between online and offline capabilities) markets, as suggested by the other theoretical However, virtual markets also present a challenge frameworks reviewed in this section to rBv theory. As information-based resources and capabilities, which have a higher degree of Resource- based view of the firm mobility than other types of resources and capa- bilities. increase in their importance within e- The resource-based view (RBV) of the firm, business firms, value migration is likely to which builds on Schumpeter's perspective on increase and the sustainability of newly created value creation, views the firm as a bundle of value may be reduced. Also, time compression resources and capabilities. The RBv states that diseconomies(Dierickx and Cool, 1989)provide marshalling and uniquely combining a set of com- an effective barrier to imitation for firm-specifio Copyright o 2001 John Wiley Sons, Ltd, sma. Mgmt. J.22:493-520(2001)

Value Creation in E-Business 497 preneurial insights in uncertain and complex environments, which are subject to self￾destruction as knowledge diffuses. In his early work, Schumpeter (1934, 1939) highlighted the contribution of individual entrepreneurs and placed an emphasis on the innovations and ser￾vices rendered by the new combinations of resources. In Schumpeter’s theory, innovation is the source of value creation. Schumpeterian inno￾vation emphasizes the importance of technology and considers novel combinations of resources (and the services they provide) as the foundations of new products and production methods. These, in turn, lead to the transformation of markets and industries, and hence to economic development. Teece (1987) adds that the effectiveness of pro￾tective property rights (appropriability regime) and complementary assets can add to the value creation potential of innovations. Moran and Gho￾shal (1999) highlight the role of economic exchange through which the latent value imbed￾ded in the new combination of resources is realiz￾able. Hitt and Ireland (2000) contribute to this theory by addressing the determinants and conse￾quences of the innovation process and by linking this process with the strategic management of growing enterprises. As innovative entrepreneurs exploit new oppor￾tunities for value creation, the evolution of the resulting virtual markets can be described in terms of Schumpeter’s model of creative destruction. However, virtual markets broaden the notion of innovation since they span firm and industry boundaries, involve new exchange mechanisms and unique transaction methods (rather than merely new products, or production processes), and foster new forms of collaborations among firms. Furthermore, while innovation is certainly a major driving force of the economic develop￾ment of new and established markets, it may not be the only source of value creation in virtual markets, as suggested by the other theoretical frameworks reviewed in this section. Resource-based view of the firm The resource-based view (RBV) of the firm, which builds on Schumpeter’s perspective on value creation, views the firm as a bundle of resources and capabilities. The RBV states that marshalling and uniquely combining a set of com￾Copyright  2001 John Wiley & Sons, Ltd. Strat. Mgmt. J., 22: 493–520 (2001) plementary and specialized resources and capa￾bilities (which are heterogeneous within an indus￾try, scarce, durable, not easily traded, and difficult to imitate), may lead to value creation (Penrose, 1959; Wernerfelt, 1984; Barney, 1991; Peteraf, 1993; Amit and Schoemaker, 1993). The supposi￾tion is that, even in equilibrium, firms may differ in terms of the resources and capabilities they control, and that such asymmetric firms may coexist until some exogenous change or Schum￾peterian shock occurs. Hence, RBV theory postu￾lates that the services rendered by the firm’s unique bundle of resources and capabilities may lead to value creation. A firm’s resources and capabilities ‘are valu￾able if, and only if, they reduce a firm’s costs or increase its revenues compared to what would have been the case if the firm did not possess those resources’ (Barney, 1997: 147). While the RBV literature has often been concerned with questions of value appropriation and sustainability of competitive advantage (e.g., Barney, 1991), a recent extension to RBV, the dynamic capabilities approach (Teece, Pisano, and Shuen, 1997), explores how valuable resource positions are built and acquired over time. Dynamic capabilities are rooted in a firm’s managerial and organizational processes, such as those aimed at coordination, integration, reconfiguration, or transformation (Teece et al., 1997; Eisenhardt and Martin, 2000), or learning (Lei, Hitt, and Bettis, 1996). These capabilities enable firms to create and capture Schumpeterian rents (Teece et al., 1997). Examples of such value-creating processes are product development, strategic decision-making, alliance formation, knowledge creation, and capa￾bilities transfer (Eisenhardt and Martin, 2000). The emergence of virtual markets clearly opens up new sources of value creation since relational capabilities and new complementarities among a firm’s resources and capabilities can be exploited (e.g., between online and offline capabilities). However, virtual markets also present a challenge to RBV theory. As information-based resources and capabilities, which have a higher degree of mobility than other types of resources and capa￾bilities, increase in their importance within e￾business firms, value migration is likely to increase and the sustainability of newly created value may be reduced. Also, time compression diseconomies (Dierickx and Cool, 1989) provide an effective barrier to imitation for firm-specific

498 R. Amit and C. Zott resources and capabilities that had to be built structural arguments to explore the importance over time due to factor market imperfections, of governance mechanisms such as trust(e.g and hence enable the preservation of value. The Lorenzoni and Lipparini, 1999), and the impor- prospect of value preservation or sustainability is tance of resources and capabilities(e.g, Gulati an important incentive for value creation. In a 1999), especially those of suppliers and customers networked economy, however, there is an alterna-(Afuah, 2000), for value creation. For example, tive to ownership or control of resources and in their study of the Canadian biotechnology capabilities (either through building or acquiring industry, Baum, Calabrese, and Silverman(2000) them). Accessing such resources through part- found that biotech start-ups can improve their nering and resource sharing agreements is more performance by configuring alliances into net- viable in virtual markets yet the preservation works that enable them to tap into the capabilities of value, and hence its creation becomes more and information of their alliance partners. In challenging, because rivals may have easy access addition to enabling access to information, mar- to substitute resources as well kets, and technologies( Gulati et al., 2000),stra- tegic networks offer the potential to share risk Strategic networks generate economies of scale and scope(Katz and Shapiro, 1985; Shapiro and Varian, 1999), share Strategic networks are stable interorganizational knowledge, and facilitate learning(Anand and ties which are strategically important to participat- Khanna, 2000: Dyer and Nobeoka, 2000; Dyer ing firms. They may take the form of strategic and Singh, 1998), and reap the benefits that alliances, joint ventures, long-term buyer-supplier accrue from interdependent activities such as partnerships, and other ties'( Gulati, Nohria, and workflow systems(Blankenburg Holm, Eriksson Zaheer, 2000: 203). The main questions that stra- and Johanson, 1999). Other sources of value in tegic network theorists seek to answer are as strategic networks include shortened time to mar follows: (1)Why and how are strategic networks ket (Kogut, 2000), enhanced transaction of firms formed?(2)What is the set of interfirm efficiency, reduced asymmetries of information, elationships that allows firms to compete in the and improved coordination between the firms marketplace?(3) How is value created in net- involved in an alliance( Gulati et al., 2000) works (for example, through interfirm asset co- The network perspective is clearly relevant for specialization )? and (4)How do firms'differential understanding wealth creation in e-business positions and relationships in networks affect because of the importance of networks of firms their performance? suppliers, customers, and other partners in the Traditionally, network theorists with a back- virtual market space( Shapiro and Varian, 1999 ground in sociology or organization theory have Prahalad and Ramaswamy, 2000). However, it focused on the implications of network structure may not fully capture the value creation potential for value creation. The configuration of the net- of e-businesses that enable transactions in new work in terms of density and centrality(Freeman, and unique ways. For example, strategic network 1979), for example, has been considered an theory and the formal tools provided by network important determinant of network advantages, analysis (e.g, notions of network density,cen- such as access, timing, and referral benefits(Burt, trality, network externalities) only partiall 1992). Moreover, the size of the network and the explain the value creation potential of a company heterogeneity of its ties have been conjectured to such as Priceline. com. This business, which has have a positive effect on the availability of valu- established stable interorganizational ties, for able information to the participants within that example, with airline companies, credit card com etwork( Granovetter, 1973) The appearance of networks of firms in which System, is fundamentally anchored in the inno- market and hierarchical governance mechanisms vation of its transaction mechanism-namely, the coexist has significantly enhanced the range of introduction of reverse markets in which cus- possible organizational arrangements for value tomers post desired prices for sellers'accep- creation(Doz and Hamel, 1998; Gulati, 1998). tance-by which items such as airline tickets are Consequently, strategic management and sold over the Internet. Priceline. com has even entrepreneurship scholars have moved beyond been granted a business method patent on their Copyright o 2001 John Wiley Sons, Ltd, sma. Mgmt. J.22:493-520(2001)

498 R. Amit and C. Zott resources and capabilities that had to be built over time due to factor market imperfections, and hence enable the preservation of value. The prospect of value preservation or sustainability is an important incentive for value creation. In a networked economy, however, there is an alterna￾tive to ownership or control of resources and capabilities (either through building or acquiring them). Accessing such resources through part￾nering and resource sharing agreements is more viable in virtual markets yet the preservation of value, and hence its creation becomes more challenging, because rivals may have easy access to substitute resources as well. Strategic networks Strategic networks are ‘stable interorganizational ties which are strategically important to participat￾ing firms. They may take the form of strategic alliances, joint ventures, long-term buyer–supplier partnerships, and other ties’ (Gulati, Nohria, and Zaheer, 2000: 203). The main questions that stra￾tegic network theorists seek to answer are as follows: (1) Why and how are strategic networks of firms formed? (2) What is the set of interfirm relationships that allows firms to compete in the marketplace? (3) How is value created in net￾works (for example, through interfirm asset co￾specialization)? and (4) How do firms’ differential positions and relationships in networks affect their performance? Traditionally, network theorists with a back￾ground in sociology or organization theory have focused on the implications of network structure for value creation. The configuration of the net￾work in terms of density and centrality (Freeman, 1979), for example, has been considered an important determinant of network advantages, such as access, timing, and referral benefits (Burt, 1992). Moreover, the size of the network and the heterogeneity of its ties have been conjectured to have a positive effect on the availability of valu￾able information to the participants within that network (Granovetter, 1973). The appearance of networks of firms in which market and hierarchical governance mechanisms coexist has significantly enhanced the range of possible organizational arrangements for value creation (Doz and Hamel, 1998; Gulati, 1998). Consequently, strategic management and entrepreneurship scholars have moved beyond Copyright  2001 John Wiley & Sons, Ltd. Strat. Mgmt. J., 22: 493–520 (2001) structural arguments to explore the importance of governance mechanisms such as trust (e.g., Lorenzoni and Lipparini, 1999), and the impor￾tance of resources and capabilities (e.g., Gulati, 1999), especially those of suppliers and customers (Afuah, 2000), for value creation. For example, in their study of the Canadian biotechnology industry, Baum, Calabrese, and Silverman (2000) found that biotech start-ups can improve their performance by configuring alliances into net￾works that enable them to tap into the capabilities and information of their alliance partners. In addition to enabling access to information, mar￾kets, and technologies (Gulati et al., 2000), stra￾tegic networks offer the potential to share risk, generate economies of scale and scope (Katz and Shapiro, 1985; Shapiro and Varian, 1999), share knowledge, and facilitate learning (Anand and Khanna, 2000; Dyer and Nobeoka, 2000; Dyer and Singh, 1998), and reap the benefits that accrue from interdependent activities such as workflow systems (Blankenburg Holm, Eriksson and Johanson, 1999). Other sources of value in strategic networks include shortened time to mar￾ket (Kogut, 2000), enhanced transaction efficiency, reduced asymmetries of information, and improved coordination between the firms involved in an alliance (Gulati et al., 2000). The network perspective is clearly relevant for understanding wealth creation in e-business because of the importance of networks of firms, suppliers, customers, and other partners in the virtual market space (Shapiro and Varian, 1999; Prahalad and Ramaswamy, 2000). However, it may not fully capture the value creation potential of e-businesses that enable transactions in new and unique ways. For example, strategic network theory and the formal tools provided by network analysis (e.g., notions of network density, cen￾trality, network externalities) only partially explain the value creation potential of a company such as Priceline.com. This business, which has established stable interorganizational ties, for example, with airline companies, credit card com￾panies, and the Worldspan Central Reservation System, is fundamentally anchored in the inno￾vation of its transaction mechanism—namely, the introduction of reverse markets in which cus￾tomers post desired prices for sellers’ accep￾tance—by which items such as airline tickets are sold over the Internet. Priceline.com has even been granted a business method patent on their

Value Creation in E-Business 499 innovative transaction method. This method have focused on the ways in which investment distinguishes the firm from an ordinary, online in information technology can reduce coordination travel agency and poises the firm to tap the costs and transaction risk( Clemons and Row more traditional, well-known sources of value 1992). In general, organizations that economize in networks discussed above. As this example on transaction costs can be expected to extract indicates, virtual markets, with their unprec- more value from transactions dented reach, connectivity, and low-cost infor- One of the main effects of transacting over the mation processing power, open entirely new Internet, or in any highly networked environment, possibilities for value creation through the struc- is the reduction in transaction costs it engenders turing of transactions in novel ways. These new (Dyer, 1997). Hence, the transaction cost transaction structures are not fully captured by approach critically informs our understanding of network theol value creation in e-business. Transaction costs include the time spent by managers and Transaction cost economics employees searching for customers and suppliers, communicating with counterparts in other com- The central question addressed by transaction cost panies regarding transaction details,. the costs economics is why firms internalize transactions of travel, physical space for meetings, and proc- that might otherwise be conducted in markets essing paper documents, as well as the costs of (Coase, 1937). The main theoretical framework production and inventory management(Lucking was developed by Williamson (1975, 1979, Reiley and Spulber, 2001). In addition to decreas- 1983). He suggests that 'a transaction occurs ing these direct costs of economic transactions, when a good or service is transferred across a e-businesses may also reduce indirect costs, such technologically separable interface. One stage of as the costs of adverse selection, moral hazard processing or assembly activity terminates, and and hold-up. This may result from an increased another begins'(Williamson, 1983: 104). Willi- frequency of transactions( because of open stan- anson identified bounded rationality coupled with dards, anyone can interact with anyone else),a uncertainty and complexity, asymmetric infor- reduction in transaction uncertainty(by providing mation,and opportunism in small-numbers situ- a wealth of transaction-specific information), and ations as conditions under which transactional a reduction in asset specificity (for example inefficiencies may arise that vary with the adopted through lower site specificity-the next site is governance mechanism(Williamson, 1975). At only one click away). The small-numbers bar- its core, then, transaction cost theory is concerned gaining condition may be relieved in the virtual with explaining the choice of the most efficient market situation because of the possibility for governance form given a transaction that is large numbers of previously unconnected parties embedded in a specific economic context. Critical(e.g, buyers and sellers)to interact dimensions of transactions influencing this choice Nonetheless, the emphasis of transaction cost are uncertainty, exchange frequency, and the economics on efficiency may divert attention from specificity of assets enabling the exchange(Klein, other fundamental sources of value such as inno- Crawford, and Alchian, 1978; Williamson, 1979). vation and the reconfiguration of resources Transaction costs include the costs of planning, (Ghoshal and Moran, 1996). The theory also adapting, executing, and monitoring task com- focuses on cost minimization by single parties pletion(Williamson, 1983) and neglects the interdependence between Transaction cost economics identifies trans- exchange parties and the opportunities for joint action efficiency as a major source of value, as value maximization that this presents(Zajac and enhanced efficiency reduces costs. It suggests that Olsen, 1993). In addition, governance modes value creation can derive from the attenuation of other than hierarchies and markets(e.g, joint uncertainty, complexity, information asymmetry, ventures) receive relatively little attention, which and bargaining conditions contrasts Importance of strategIc net (Williamson, 1975). Moreover, reputation, trust, works in e-business. Finally, Williamson (1983) and transactional experience can lower the cost implies that a transaction is a discrete event that of idiosyncratic exchanges between firms is valuable by itself, as it reflects the choice of (Williamson, 1979, 1983). Recently, researchers the most efficient governance form and hence can Copyright o 2001 John Wiley Sons, Ltd, sma. Mgmt. J.22:493-520(2001)

Value Creation in E-Business 499 innovative transaction method. This method distinguishes the firm from an ordinary, online travel agency and poises the firm to tap the more traditional, well-known sources of value in networks discussed above. As this example indicates, virtual markets, with their unprec￾edented reach, connectivity, and low-cost infor￾mation processing power, open entirely new possibilities for value creation through the struc￾turing of transactions in novel ways. These new transaction structures are not fully captured by network theory. Transaction cost economics The central question addressed by transaction cost economics is why firms internalize transactions that might otherwise be conducted in markets (Coase, 1937). The main theoretical framework was developed by Williamson (1975, 1979, 1983). He suggests that ‘a transaction occurs when a good or service is transferred across a technologically separable interface. One stage of processing or assembly activity terminates, and another begins’ (Williamson, 1983: 104). Willi￾amson identified bounded rationality coupled with uncertainty and complexity, asymmetric infor￾mation, and opportunism in small-numbers situ￾ations as conditions under which transactional inefficiencies may arise that vary with the adopted governance mechanism (Williamson, 1975). At its core, then, transaction cost theory is concerned with explaining the choice of the most efficient governance form given a transaction that is embedded in a specific economic context. Critical dimensions of transactions influencing this choice are uncertainty, exchange frequency, and the specificity of assets enabling the exchange (Klein, Crawford, and Alchian, 1978; Williamson, 1979). Transaction costs include the costs of planning, adapting, executing, and monitoring task com￾pletion (Williamson, 1983). Transaction cost economics identifies trans￾action efficiency as a major source of value, as enhanced efficiency reduces costs. It suggests that value creation can derive from the attenuation of uncertainty, complexity, information asymmetry, and small-numbers bargaining conditions (Williamson, 1975). Moreover, reputation, trust, and transactional experience can lower the cost of idiosyncratic exchanges between firms (Williamson, 1979, 1983). Recently, researchers Copyright  2001 John Wiley & Sons, Ltd. Strat. Mgmt. J., 22: 493–520 (2001) have focused on the ways in which investment in information technology can reduce coordination costs and transaction risk (Clemons and Row, 1992). In general, organizations that economize on transaction costs can be expected to extract more value from transactions. One of the main effects of transacting over the Internet, or in any highly networked environment, is the reduction in transaction costs it engenders (Dyer, 1997). Hence, the transaction cost approach critically informs our understanding of value creation in e-business. Transaction costs include ‘the time spent by managers and employees searching for customers and suppliers, communicating with counterparts in other com￾panies regarding transaction details … the costs of travel, physical space for meetings, and proc￾essing paper documents,’ as well as the costs of production and inventory management (Lucking￾Reiley and Spulber, 2001). In addition to decreas￾ing these direct costs of economic transactions, e-businesses may also reduce indirect costs, such as the costs of adverse selection, moral hazard, and hold-up. This may result from an increased frequency of transactions (because of open stan￾dards, anyone can interact with anyone else), a reduction in transaction uncertainty (by providing a wealth of transaction-specific information), and a reduction in asset specificity (for example, through lower site specificity––the next site is only ‘one click away’). The small-numbers bar￾gaining condition may be relieved in the virtual market situation because of the possibility for large numbers of previously unconnected parties (e.g., buyers and sellers) to interact. Nonetheless, the emphasis of transaction cost economics on efficiency may divert attention from other fundamental sources of value such as inno￾vation and the reconfiguration of resources (Ghoshal and Moran, 1996). The theory also focuses on cost minimization by single parties and neglects the interdependence between exchange parties and the opportunities for joint value maximization that this presents (Zajac and Olsen, 1993). In addition, governance modes other than hierarchies and markets (e.g., joint ventures) receive relatively little attention, which contrasts with the importance of strategic net￾works in e-business. Finally, Williamson (1983) implies that a transaction is a discrete event that is valuable by itself, as it reflects the choice of the most efficient governance form and hence can

500 R. Amit and C. Zott be a source of transactional efficiencies. However, inquiry. The analysts wrote up the answers to in the context of virtual markets, considering any the questions using information gathered from given exchange in isolation from other exchanges multiple data sources, writing up to several para- that may complement or facilitate that exchange graphs in response to each question makes it difficult to assess the value created by Our research design was based on multiple a specific economic exchange. This is evident cases and multiple investigators, thereby allowing from the absence of direct empirical validation for replication logic (Yin, 1989). That is, we of the relationship between exchange attributes treated a series of cases like a series of experi and market and firm performance(Poppo and ments. Each case served to test the theoretical Lenger, 1998), and the absence of estimates of insights gained from the examination of previous transaction costs themselves(see Shelanski and cases, and to modify or refine them. This repl Klein, 1995, for a review) cation logic fosters the emergence of testable theory that is free of researcher bias(Eisenhardt, Summary 1989),and allows for a close correspondence between theory and data (Glaser and Strauss, Each theoretical framework discussed above 1967). Such a grounding of the emerging theory nakes valuable suggestions about possible in the data can provide a new perspective on an sources of value creation. As we have seen, many already researched topic (e.g, Hitt et al, 1998) of the insights gained from cumulative research However, it is especially useful in the early stages in entrepreneurship and strategic management are of research on a topic, when it is not clear yet applicable to e-business. However, the multitude to what extent the research question is informed of value drivers suggested in the literature raises by existing theories( for a recent example of such the question of precisely which sources of value an inductive study, see Galunic and Eisenhardt, are of particular importance in e-business, and 2001). Both motivations hold in the context of whether unique value drivers can be identified in e-business. Furthermore, using case studies is a the context of e-business. We have also drawn good research strategy for examining a contem- attention to the fact that each theoretical frame- porary phenomenon in its real-life context, ork that might explain value creation has limi- especially when the boundaries between phenom- tations when applied in the context of highly enon and context are not clearly evident'(Yin, interconnected electronic markets. We believe that 1981: 59). This difficulty is present in the e- this reinforces the need for an identification and business context prioritization of the sources of value creation in e-business We begin this process by grounding population of e-business firms a model of the sources of value creation in e- business in using data on e-business firms We define an e-business firm as one that derives a significant proportion(at least 10%)of its revenues from transactions conducted over the DATA AND METHOD Internet. This definition of an e-business firm is Research strategy quite broad. It includes, for example, Internet Service Providers(e.g, European ISP Freeserve), A lack of prior theorizing about a topic makes and companies that have not aligned all of their the inductive case study approach an appropriate internal business processes with the Internet but hoice of methodology for developing theory that use the Internet solely as a sales channel Eisenhardt, 1989). Hence, to gain a deeper (e.g, companies such as the speech recognition understanding of value creation in e-business, we software provider Lernout and Hauspie). On the conducted in-depth inquiries into the sources of other hand, it excludes providers of Internet value creation of 59 e-business firms. Our related hardware or software. that is. firms that esearch analysts, two of our former MBA stu- facilitate e-business but that do not engage in dents carefully selected from a pool of applicants the activity themselves (e.g, a backbone switch based on their sound understanding of e-business manufacturer, such as Packet Engines Inc) transactions, investigated each firm using approxi- Companies that derive all of their revenues mately 50 open-ended questions to guide their from e-business(so-called pure plays)are rela Copyright o 2001 John Wiley Sons, Ltd, sma. Mgmt. J.22:493-520(2001)

500 R. Amit and C. Zott be a source of transactional efficiencies. However, in the context of virtual markets, considering any given exchange in isolation from other exchanges that may complement or facilitate that exchange makes it difficult to assess the value created by a specific economic exchange. This is evident from the absence of direct empirical validation of the relationship between exchange attributes and market and firm performance (Poppo and Zenger, 1998), and the absence of estimates of transaction costs themselves (see Shelanski and Klein, 1995, for a review). Summary Each theoretical framework discussed above makes valuable suggestions about possible sources of value creation. As we have seen, many of the insights gained from cumulative research in entrepreneurship and strategic management are applicable to e-business. However, the multitude of value drivers suggested in the literature raises the question of precisely which sources of value are of particular importance in e-business, and whether unique value drivers can be identified in the context of e-business. We have also drawn attention to the fact that each theoretical frame￾work that might explain value creation has limi￾tations when applied in the context of highly interconnected electronic markets. We believe that this reinforces the need for an identification and prioritization of the sources of value creation in e-business. We begin this process by grounding a model of the sources of value creation in e￾business in using data on e-business firms. DATA AND METHOD Research strategy A lack of prior theorizing about a topic makes the inductive case study approach an appropriate choice of methodology for developing theory (Eisenhardt, 1989). Hence, to gain a deeper understanding of value creation in e-business, we conducted in-depth inquiries into the sources of value creation of 59 e-business firms. Our research analysts, two of our former MBA stu￾dents carefully selected from a pool of applicants based on their sound understanding of e-business transactions, investigated each firm using approxi￾mately 50 open-ended questions to guide their Copyright  2001 John Wiley & Sons, Ltd. Strat. Mgmt. J., 22: 493–520 (2001) inquiry. The analysts wrote up the answers to the questions using information gathered from multiple data sources, writing up to several para￾graphs in response to each question. Our research design was based on multiple cases and multiple investigators, thereby allowing for replication logic (Yin, 1989). That is, we treated a series of cases like a series of experi￾ments. Each case served to test the theoretical insights gained from the examination of previous cases, and to modify or refine them. This repli￾cation logic fosters the emergence of testable theory that is free of researcher bias (Eisenhardt, 1989), and allows for a close correspondence between theory and data (Glaser and Strauss, 1967). Such a grounding of the emerging theory in the data can provide a new perspective on an already researched topic (e.g., Hitt et al., 1998). However, it is especially useful in the early stages of research on a topic, when it is not clear yet to what extent the research question is informed by existing theories (for a recent example of such an inductive study, see Galunic and Eisenhardt, 2001). Both motivations hold in the context of e-business. Furthermore, using case studies is a good research strategy for examining ‘a contem￾porary phenomenon in its real-life context, especially when the boundaries between phenom￾enon and context are not clearly evident’ (Yin, 1981: 59). This difficulty is present in the e￾business context. Population of e-business firms We define an e-business firm as one that derives a significant proportion (at least 10%) of its revenues from transactions conducted over the Internet. This definition of an e-business firm is quite broad. It includes, for example, Internet Service Providers (e.g., European ISP Freeserve), and companies that have not aligned all of their internal business processes with the Internet but that use the Internet solely as a sales channel (e.g., companies such as the speech recognition software provider Lernout and Hauspie). On the other hand, it excludes providers of Internet￾related hardware or software, that is, firms that facilitate e-business but that do not engage in the activity themselves (e.g., a backbone switch manufacturer, such as Packet Engines Inc.). Companies that derive all of their revenues from e-business (so-called ‘pure plays’) are rela-

Value Creation in E-Business 501 tively easy to identify using publicly available States or in Europe,(b) be publicly quoted on a descriptions of their major lines of business(e.g, stock exchange, and (c) involve individual con Amazon. com). In other instances, however, it is sumers in some of the electronic transactions it more difficult to establish whether a firm derives enables. The international scope of our study significant revenues from e-business. This is the not only reflects the decreasing importance of case for many incumbents (e.g, the British geographic boundaries in virtual markets, it also retailer Iceland ) It is often impossible to assert strengthens our theory development. Theory if this criterion has been met since companies building on value creation in e-business from seldom report their e-business revenues as a sep- inductive case studies is less idiosyncratic if one arate category. In these cases, we used other allows for cases from different economic environ- information to determine the company's fit with ments. 9 our target population. For example, we checked We chose to include only public companies in whether at least two trade publications such as our sample to ensure the availability and accuracy the Wall street Journal and the financial Times of information we are aware that this limits the eferred to the company as an e-business, or a scope of our analysis, as there are many private pioneer or early innovator in the virtual market firms with interesting business ideas. However space unlike private firms, publicly traded companies provide a wealth of data that can be collected Sample organized, and analyzed. At this point, it is unclear whether or not this choice introduces a For the United States, we created a list of e- large-company bias into our sample, and hence businesses that went public between 2 April 1996 into our conceptual development, because there (Lycos and 15 October 1999(Women. com are many large, private e-business operations, and Networks) using information available on several large, public firms not included in our www.hoovers.com This list includes about 150 sample(.g, AOL and Yahoo) firms, most of which are pure plays. Our initial Including only public companies in our sample subsample of 30 U.S. e-business companies was may bias it towards surviving companies. While then taken at random from this list on the basis of limitations on the availability of data prevent us a uniform probability distribution over all sample from broadening the sample to firms that failed companies. The U.S. subsample represents a (according to some definition of failure), we do broad cross-section of firms(see Appendix). By not believe that the survival bias affects the theo- contrast, the challenge in creating the European retical development. First, some of the firms we sub-sample was in identifying public e-businesses. studied will likely fail eventually. Second, the The number of European firms engaged in e- argument can be made for theoretical rather than business, as well as the development of indicators random sampling of cases, and for studying of Internet usage and e-business activity in Eu- extreme situations and polar types in which the rope, have lagged behind the corresponding fig ures in the United States in recent years(Morgan Stanley Dean Witter, 1999). Despite these 9 The decision to include U.S. as well as European firms in difficulties, we established a sample of 29 public our sample has several implications. E-business activity in Appendix). Companies were found on all major United States, an ed less by start-ups, as is the case in the European e-businesses (also listed in the Europe is dominate more by established companies(Morgan Stanley Dean Witter, 1999). For example, the United King European exchanges, as well as on new venture dom's Freeserve is a spin-off of Dixons, a large"bricks-and- markets(such as Germany's Neuer Markt) mortar'retailer, and Spains Terra Networks is a spin-off of To be eligible for inclusion in our sample Telefonica, a large telecommunication firm. An affiliation(past or present)with established companies probably influences the e-business had to(a) be based either in the Un particular business models of respective e-business firms. For of their parent companies, while others may suffer from The principal reason for choosing 2 April 1996(date of imposed organizational constraints. However, a possible sam- few days later by Yahoo's ple bias toward(mostly former) subsidiaries of established IPO) start date for was that this date marked companies should not affect our ability to develop a general the beginning of a peri multiple IPOs of e-business framework for evaluating the value creation potential of e- companies that occurred accession. This enabled us business firms. In fact, such a general framework should be to create a data set of sufficient size and breadth independent of the mode of Copyright o 2001 John Wiley Sons, Ltd, sma. Mgmt. J.22:493-520(2001)

Value Creation in E-Business 501 tively easy to identify using publicly available descriptions of their major lines of business (e.g., Amazon.com). In other instances, however, it is more difficult to establish whether a firm derives significant revenues from e-business. This is the case for many incumbents (e.g., the British retailer Iceland). It is often impossible to assert if this criterion has been met since companies seldom report their e-business revenues as a sep￾arate category. In these cases, we used other information to determine the company’s fit with our target population. For example, we checked whether at least two trade publications such as the Wall Street Journal and the Financial Times referred to the company as an e-business, or a pioneer or early innovator in the virtual market space. Sample For the United States, we created a list of e￾businesses that went public between 2 April 1996 (Lycos)8 and 15 October 1999 (Women.com Networks) using information available on www.hoovers.com. This list includes about 150 firms, most of which are ‘pure plays.’ Our initial subsample of 30 U.S. e-business companies was then taken at random from this list on the basis of a uniform probability distribution over all sample companies. The U.S. subsample represents a broad cross-section of firms (see Appendix). By contrast, the challenge in creating the European sub-sample was in identifying public e-businesses. The number of European firms engaged in e￾business, as well as the development of indicators of Internet usage and e-business activity in Eu￾rope, have lagged behind the corresponding fig￾ures in the United States in recent years (Morgan Stanley Dean Witter, 1999). Despite these difficulties, we established a sample of 29 public European e-businesses (also listed in the Appendix). Companies were found on all major European exchanges, as well as on new venture markets (such as Germany’s Neuer Markt). To be eligible for inclusion in our sample, an e-business had to (a) be based either in the United 8 The principal reason for choosing 2 April 1996 (date of Lycos’s IPO, which was followed a few days later by Yahoo’s IPO) as a start date for sampling was that this date marked the beginning of a period of multiple IPOs of e-business companies that occurred in quick succession. This enabled us to create a data set of sufficient size and breadth. Copyright  2001 John Wiley & Sons, Ltd. Strat. Mgmt. J., 22: 493–520 (2001) States or in Europe, (b) be publicly quoted on a stock exchange, and (c) involve individual con￾sumers in some of the electronic transactions it enables. The international scope of our study not only reflects the decreasing importance of geographic boundaries in virtual markets, it also strengthens our theory development. Theory building on value creation in e-business from inductive case studies is less idiosyncratic if one allows for cases from different economic environ￾ments.9 We chose to include only public companies in our sample to ensure the availability and accuracy of information. We are aware that this limits the scope of our analysis, as there are many private firms with interesting business ideas. However, unlike private firms, publicly traded companies provide a wealth of data that can be collected, organized, and analyzed. At this point, it is unclear whether or not this choice introduces a large-company bias into our sample, and hence into our conceptual development, because there are many large, private e-business operations, and several large, public firms not included in our sample (e.g., AOL and Yahoo). Including only public companies in our sample may bias it towards surviving companies. While limitations on the availability of data prevent us from broadening the sample to firms that ‘failed’ (according to some definition of failure), we do not believe that the survival bias affects the theo￾retical development. First, some of the firms we studied will likely fail eventually. Second, the argument can be made for theoretical rather than random sampling of cases, and for studying ‘extreme situations and polar types in which the 9 The decision to include U.S. as well as European firms in our sample has several implications. E-business activity in Europe is dominated less by start-ups, as is the case in the United States, and more by established companies (Morgan Stanley Dean Witter, 1999). For example, the United King￾dom’s Freeserve is a spin-off of Dixons, a large ‘bricks-and￾mortar’ retailer, and Spain’s Terra Networks is a spin-off of Telefo´nica, a large telecommunication firm. An affiliation (past or present) with established companies probably influences the particular business models of respective e-business firms. For example, some spin-offs may benefit from the alliance network of their parent companies, while others may suffer from imposed organizational constraints. However, a possible sam￾ple bias toward (mostly former) subsidiaries of established companies should not affect our ability to develop a general framework for evaluating the value creation potential of e￾business firms. In fact, such a general framework should be independent of the mode of business creation

502 R. Amit and C. Zott process of interest is transparently observable' which is available to the public online. Data on (Eisenhardt, 1989: 537) companies included in the data base adhere to a As implied by ling criterion (), we single, U.S. standard set by the SEC. In Europe focused our study on e-business firms that enabled however, there is no central data depository. In transactions in which individual consumers were addition, company reporting requirements vary involved. These companies are hereafter collec- across European countries, ranging from strict tively referred to as with-C companies. For (e.g, the United Kingdom) to relatively lax(e.g example, our sample included so-called 'B-to- Italy). European firms also vary widely in their C(business-to-consumer) companies, which are accounting and disclosure practices, making com companies that directly and exclusively engage parisons across firms difficult. This made the use in transactions with individual customers. We of multiple sources of information particularl did not sample businesses that solely engaged in importan commercial activities with other businesses(so- called 'B-to-B. or "business-to-business companies). We made this choice based primarily Data analysis on the fact that the quality of data available for In inductive studies, data analysis is often hard with-C' firms was higher than that available for to distinguish from data collection since building B-to-B firms at the time this research project theory that is grounded in the data is an iterative was launched o process in which the emergent frame is compared systematically with evidence from each case Data collection (Eisenhardt, 1989). Some researchers argue for a deliberate process of joint data collection and We gathered detailed data on our sample com- analysis (e.g, Glaser and Strauss, 1967). We panies mainly from publicly available sources: employed this joint process by frequently moving IPO prospectuses (our major source), annual between the data and the emerging theory as we eports, investment analysts'reports, and com- developed our model. The value driver categories panies' web sites. A structured questionnaire was derived from our preliminary analysis of the used to collect information about:(a) the com- initial data clearly influenced the design of the pany(e.g, founding date, size, lines of business, subsequent questionnaire that we used for further products and services provided, and some finan- data collection. cial data);(b)the nature and sequence of trans- We used standard techniques for both within actions that the firm enables (e.g, questions case analysis and cross-case analysis(Eisenhardt, included: 'What is the company's role in consum- 1989: Glaser and Strauss, 1967; Miles and Huber mating each transaction? 'and 'Who are the other man, 1984: Yin, 1989). Within-case evidence was players involved?);(c)potential sources of value acquired by taking notes rather than by writing creation(e.g, questions included: How important narratives. For this purpose, research analysts are complementary products or services?' and answered the questions enumerated in the ques- Are they part of the transaction offering?); and tionnaire, integrating and triangulating facts from (d)the firms strategy (e.g, questions included: the various data sources mentioned above. As How does the company position itself vis-a- observed by Yin(1981: 60),The final case vis competitors?). Most of the approximately 50 studies resembled comprehensive examinations questions enumerated in the questionnaire were rather than term papers. The authors then ana- open-ended, which was consistent with our pri- lyzed these products sequentially and indepen mary objective of developing a conceptual frame- work that was informed by empirical evidence Much high-quality data about U.S. firms was started with an initial version of the questionnaire that obtained from the SeC's edgar data base yas intended to bring focus and clarity to the questions This initial questionnaire had been pretested on several cases. Subsequently, we modified, added, and dropped ques- o We do not believe that our focus on with- c' firms seriously about 2 months into the research project, and made fects the theory development. The value driver categories revisions again about I month later. After every dentified in the analysis shou apply to'B-to-B model on, all cases that had hitherto been examined were albeit perhaps with different weights. Copyright o 2001 John Wiley Sons, Ltd, sma. Mgmt. J.22:493-520(2001)

502 R. Amit and C. Zott process of interest is transparently observable’ (Eisenhardt, 1989: 537). As implied by sampling criterion (c), we focused our study on e-business firms that enabled transactions in which individual consumers were involved. These companies are hereafter collec￾tively referred to as ‘with-C’ companies. For example, our sample included so-called ‘B-to￾C’ (business-to-consumer) companies, which are companies that directly and exclusively engage in transactions with individual customers. We did not sample businesses that solely engaged in commercial activities with other businesses (so￾called ‘B-to-B,’ or ‘business-to-business’ companies). We made this choice based primarily on the fact that the quality of data available for ‘with-C’ firms was higher than that available for ‘B-to-B’ firms at the time this research project was launched.10 Data collection We gathered detailed data on our sample com￾panies mainly from publicly available sources: IPO prospectuses (our major source), annual reports, investment analysts’ reports, and com￾panies’ web sites. A structured questionnaire was used to collect information about: (a) the com￾pany (e.g., founding date, size, lines of business, products and services provided, and some finan￾cial data); (b) the nature and sequence of trans￾actions that the firm enables (e.g., questions included: ‘What is the company’s role in consum￾mating each transaction?’ and ‘Who are the other players involved?’); (c) potential sources of value creation (e.g., questions included: ‘How important are complementary products or services?’ and ‘Are they part of the transaction offering?’); and (d) the firm’s strategy (e.g., questions included: ‘How does the company position itself vis-a`- vis competitors?’). Most of the approximately 50 questions enumerated in the questionnaire were open-ended, which was consistent with our pri￾mary objective of developing a conceptual frame￾work that was informed by empirical evidence. Much high-quality data about U.S. firms was obtained from the SEC’s EDGAR data base, 10 We do not believe that our focus on ‘with-C’ firms seriously affects the theory development. The value driver categories identified in the analysis should also apply to ‘B-to-B’ models, albeit perhaps with different weights. Copyright  2001 John Wiley & Sons, Ltd. Strat. Mgmt. J., 22: 493–520 (2001) which is available to the public online. Data on companies included in the data base adhere to a single, U.S. standard set by the SEC. In Europe, however, there is no central data depository. In addition, company reporting requirements vary across European countries, ranging from strict (e.g., the United Kingdom) to relatively lax (e.g., Italy). European firms also vary widely in their accounting and disclosure practices, making com￾parisons across firms difficult. This made the use of multiple sources of information particularly important. Data analysis In inductive studies, data analysis is often hard to distinguish from data collection since building theory that is grounded in the data is an iterative process in which the emergent frame is compared systematically with evidence from each case (Eisenhardt, 1989). Some researchers argue for a deliberate process of joint data collection and analysis (e.g., Glaser and Strauss, 1967). We employed this joint process by frequently moving between the data and the emerging theory as we developed our model. The value driver categories derived from our preliminary analysis of the initial data clearly influenced the design of the subsequent questionnaire that we used for further data collection.11 We used standard techniques for both within￾case analysis and cross-case analysis (Eisenhardt, 1989; Glaser and Strauss, 1967; Miles and Huber￾man, 1984; Yin, 1989). Within-case evidence was acquired by taking notes rather than by writing narratives. For this purpose, research analysts answered the questions enumerated in the ques￾tionnaire, integrating and triangulating facts from the various data sources mentioned above. As observed by Yin (1981: 60), ‘The final case studies resembled comprehensive examinations rather than term papers.’ The authors then ana￾lyzed these products sequentially and indepen- 11 We started with an initial version of the questionnaire that reflected a working framework we had already constructed. This was intended to bring focus and clarity to the questions asked. This initial questionnaire had been pretested on several cases. Subsequently, we modified, added, and dropped ques￾tions about 2 months into the research project, and made similar revisions again about 1 month later. After every revision, all cases that had hitherto been examined were updated accordingly