《投资概念学》（theconceptofinvesting）课程ppt，英文版。共六部分。

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《城市生态学》ppt，讲解城市与城市生态学、生态学有关概念与原理等。

ISDN的定义、ISDN出现的背景、ISDN的特性及优缺点、ISDN标准的制订情况、ISDN在各国的发展状况、ISDN的国际标准。

Excel在统计学中的应用电子教案，共9章，内容完整：第1章Excel基础知识第2章统计数据的采集

Introduction a dollar today is worth more than a dollar tomorrow a safe dollar is worth more than a risky dollar People have different degrees of risk aversion. Some are more willing to take a chance than others A tradeoff exists between risk and return

To consume, to save, or to invest a dollar that is earned Both saving and investing amount to consumption shifting through time However, saving involves little, if any, risk, while investing is a risky endeavor

The role of the capital Markets An exchange serves three principal functions Economic Function Continuous Pricing Function Fair Pricing Function

Corporations, Shares, and shareholder Rights People who own stock have an equity interest in the organization e f a business has shares of stock it is organized as a corporation rather than a proprietorship or a partnership The shares of some corporations are closely held, while others are publicly held The two types of stock are common stock and preferred stock

Bond Principles: Identification- of Bonds Bonds are identified by issuer, coupon rate, and maturity. The face value of a bond is called its par value. e.g. 5 of \Hertz sevens of 03\(Hertz 7s03) .A legal document called the indenture contains the details of the bond issue