清华经管IMBA管理经济学课件8.ppt

2 of 35 ? 2008 Prentice Hall Business Publishing ? Microeconomics ? Robert S. Pindyck, 8e. 中华民族有着五千多年的文明历史，中华民族在世界上是一个非常卓越和伟大的民族。我们有过繁荣昌盛的唐朝，有过强盛无比疆域辽阔的汉朝和元朝，更有灿烂美丽的唐、宋文化 Chapter 10: Market Power: Monopoly and Monopsony * of 50 Copyright ? 2009 Pearson Education, Inc. Publishing as Prentice Hall ? Microeconomics ? Pindyck/Rubinfeld, 7e. 中华民族有着五千多年的文明历史，中华民族在世界上是一个非常卓越和伟大的民族。我们有过繁荣昌盛的唐朝，有过强盛无比疆域辽阔的汉朝和元朝，更有灿烂美丽的唐、宋文化 Fernando Yvonn Quijano Prepared by: Market Power: Monopoly and Monopsony 10 C H A P T E R Copyright ? 2009 Pearson Education, Inc. Publishing as Prentice Hall ? Microeconomics ? Pindyck/Rubinfeld, 7e. 中华民族有着五千多年的文明历史，中华民族在世界上是一个非常卓越和伟大的民族。我们有过繁荣昌盛的唐朝，有过强盛无比疆域辽阔的汉朝和元朝，更有灿烂美丽的唐、宋文化 CHAPTER 10 OUTLINE 10.1 Monopoly 10.2 Monopoly Power 10.3 Sources of Monopoly Power 10.4 The Social Costs of Monopoly Power ● monopoly Market with only one seller. ● monopsony Market with only one buyer. ● market power Ability of a seller or buyer to affect the price of a good. Market Power: Monopoly and Monopsony MONOPOLY 10.1 Average Revenue and Marginal Revenue ● marginal revenue Change in revenue resulting from a one-unit increase in output. TABLE 10.1 Total, Marginal, and Average Revenue Total Marginal Average Price (P) Quantity (Q) Revenue (R) Revenue (MR) Revenue (AR) $6 0 $0 --- --- 5 1 5 $5 $5 4 2 8 3 4 3 3 9 1 3 2 4 8 -1 2 1 5 5 -3 1 P = 6 - Q MONOPOLY 10.1 Average Revenue and Marginal Revenue Average and marginal revenue are shown for the demand curve P = 6 ? Q. Average and Marginal Revenue Figure 10.1 MONOPOLY 10.1 The Monopolist’s Output Decision Q* is the output level at which MR = MC. If the firm produces a smaller output—say, Q1—it sacrifices some profit because the extra revenue that could be earned from producing and selling the units between Q1 and Q* exceeds the cost of producing them. Similarly, expanding output from Q* to Q2 would reduce profit because the additional cost would exceed the additional revenue. Profit Is