Chapter Six Monopoly : Market Power 垄断：市场力 Chapter 7 Monopolistic Competition (垄断竞争市场) Chapter 8 Oligopoly (寡头市场) Chapter 9 Game Theory

Optimization See Sydsaeter(2005, Chapters 2, 3)and Chiang(1984, Chapters 9, 11, 12 and 21) Positive definite matrix Definite matrices are directly related to optimization. A symmetric matrix A is positive semi- definite(A≥0) if rAr≥0,Vx; positive definite(A>0)

Content Pure exchange system The existence of Walrasian equilibrium The first theorem of welfare economics The second theorem of welfare economics Exchange with production

Content Public goods Subscription Efficient provision of public goods Public choice EXternality What's externality? How to solute it? What's the efficient condition with externality

Content Competitive equilibrium Local analysis Omplete compete market Monopoly

Summary textbook Varian, Hal R, 1992, Microeconomics Analysis, 3rd ed Mas-Colella m Whinston and j, green 1995, microeconomics Theory assignments

Preference and Choice Content: Preference and rationality The rule of choice Budget Demand function WAand demanded law

Cost Minimization Content Definitions Properties of cost function WACM Some forms of cost functions

Content Lotteries and expected utility Risk aversion Metric Subjective probability theory

Aggregation and Welfare Content Consumer's surplus Aggregation Representation consumer