• 简介 • 是污染者享有污染权，还是受害者享有免遭污染的权利 • 科思定理 • 有害公共物品及其交易 • 团体内部的交易

• 效率的含义 • 效率与竞争性市场 • 供给、需求与效率 • 成本—收益分析

Structure Definition When to provide a public good Efficient provision Private provision: free-riding Variable quantities of public good -Efficient amount Free-riding problem How to provide public goods? Demand revelation

Contents Dominant strategy Nash equilibrium Prisoner's' dilemma and repeated games Multiple equilibria and sequential games Pure and mixed strategies

How Should a Monopoly Price? So far a monopoly has been thought of as a firm which has to sell its product at the same price to every customer. This is uniform pricing. Can price-discrimination-(差别定价 ) earn monopoly higher profits?

Structure Definition Consumption externality Production externality The tragedy of commons

Introduction What is International Economics about? International Economics: Trade and Money

Introduction A Standard Model of Trading Economy International Transfers of Income: Shifting the RD Curve Tariffs and Export Subsidies: Simultaneous Shifts in RS and RD Summary Appendix: Representing International Equilibrium with Offer Curves

Chapter organization Introduction International Labor mobility International Borrowing and Lending Direct Foreign Investment and Multinational Firms Summary Appendix: More on Intertemporal Trade

Chapter Organization Introduction The Case for Free Trade National Welfare Arguments against Free Trade Income Distribution and Trade Policy International Negotiations and Trade Policy Summary Appendix: Proving that the Optimum Tariff is Positive