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Cover
Contents
Preface
PART ONE: Introduction: Markets and Prices
1 Preliminaries
1.1 The Themes of Microeconomics
1.2 What Is a Market?
1.3 Real versus Nominal Prices
1.4 Why Study Microeconomics?
Summary
Questions for Review
Exercises
2 The Basics of Supply and Demand
2.1 Supply and Demand
2.2 The Market Mechanism
2.3 Changes in Market Equilibrium
2.4 Elasticities of Supply and Demand
2.5 Short-Run versus Long-Run Elasticities
*2.6 Understanding and Predicting the Effects of Changing Market Conditions
2.7 Effects of Government Intervention—Price Controls
Summary
Questions for Review
Exercises
PART TWO: Producers, Consumers, and Competitive Markets
3 Consumer Behavior
3.1 Consumer Preferences
3.2 Budget Constraints
3.3 Consumer Choice
3.4 Revealed Preference
3.5 Marginal Utility and Consumer Choice
*3.6 Cost-of-Living Indexes
Summary
Questions for Review
Exercises
4 Individual and Market Demand
4.1 Individual Demand
4.2 Income and Substitution Effects
4.3 Market Demand
4.4 Consumer Surplus
4.5 Network Externalities
*4.6 Empirical Estimation of Demand
Summary
Questions for Review
Exercises
APPENDIX TO CHAPTER 4: Demand Theory—A Mathematical Treatment
Utility Maximization
The Method of Lagrange Multipliers
The Equal Marginal Principle
Marginal Rate of Substitution
Marginal Utility of Income
An Example
Duality in Consumer Theory
Income and Substitution Effects
Exercises
5 Uncertainty and Consumer Behavior
5.1 Describing Risk
5.2 Preferences Toward Risk
5.3 Reducing Risk
*5.4 The Demand for Risky Assets
5.5 Bubbles
5.6 Behavioral Economics
Summary
Questions for Review
Exercises
6 Production
6.1 Firms and Their Production Decisions
6.2 Production with One Variable Input (Labor)
6.3 Production with Two Variable Inputs
6.4 Returns to Scale
Summary
Questions for Review
Exercises
7 The Cost of Production
7.1 Measuring Cost: Which Costs Matter?
7.2 Cost in the Short Run
7.3 Cost in the Long Run
7.4 Long-Run versus Short-Run Cost Curves
7.5 Production with Two Outputs—Economies of Scope
*7.6 Dynamic Changes in Costs—The Learning Curve
7.7 Estimating and Predicting Cost
Summary
Questions for Review
Exercises
APPENDIX TO CHAPTER 7: Production and Cost Theory—A Mathematical Treatment
Cost Minimization
Marginal Rate of Technical Substitution
Duality in Production and Cost Theory
The Cobb-Douglas Cost and Production Functions
Exercises
8 Profit Maximization and Competitive Supply
8.1 Perfectly Competitive Markets
8.2 Profit Maximization
8.3 Marginal Revenue, Marginal Cost, and Profit Maximization
8.4 Choosing Output in the Short Run
8.5 The Competitive Firm’s Short-Run Supply Curve
8.6 The Short-Run Market Supply Curve
8.7 Choosing Output in the Long Run
8.8 The Industry’s Long-Run Supply Curve
Summary
Questions for Review
Exercises
9 The Analysis of Competitive Markets
9.1 Evaluating the Gains and Losses from Government Policies—Consumer and Producer Surplus
9.2 The Efficiency of a Competitive Market
9.3 Minimum Prices
9.4 Price Supports and Production Quotas
9.5 Import Quotas and Tariffs
9.6 The Impact of a Tax or Subsidy
Summary
Questions for Review
Exercises
PART THREE: Market Structure and Competitive Strategy
10 Market Power: Monopoly and Monopsony
10.1 Monopoly
10.2 Monopoly Power
10.3 Sources of Monopoly Power
10.4 The Social Costs of Monopoly Power
10.5 Monopsony
10.6 Monopsony Power
10.7 Limiting Market Power: The Antitrust Laws
Summary
Questions for Review
Exercises
11 Pricing with Market Power
11.1 Capturing Consumer Surplus
11.2 Price Discrimination
11.3 Intertemporal Price Discrimination and Peak-Load Pricing
11.4 The Two-Part Tariff
*11.5 Bundling
*11.6 Advertising
Summary
Questions for Review
Exercises
APPENDIX TO CHAPTER 11: The Vertically Integrated Firm
Why Vertically Integrate?
Transfer Pricing in the Integrated Firm
A Numerical Example
Exercises
12 Monopolistic Competition and Oligopoly
12.1 Monopolistic Competition
12.2 Oligopoly
12.3 Price Competition
12.4 Competition versus Collusion: The Prisoners’ Dilemma
12.5 Implications of the Prisoners’ Dilemma for Oligopolistic Pricing
12.6 Cartels
Summary
Questions for Review
Exercises
13 Game Theory and Competitive Strategy
13.1 Gaming and Strategic Decisions
13.2 Dominant Strategies
13.3 The Nash Equilibrium Revisited
13.4 Repeated Games
13.5 Sequential Games
13.6 Threats, Commitments, and Credibility
13.7 Entry Deterrence
*13.8 Auctions
Summary
Questions for Review
Exercises
14 Markets for Factor Inputs
14.1 Competitive Factor Markets
14.2 Equilibrium in a Competitive Factor Market
14.3 Factor Markets with Monopsony Power
14.4 Factor Markets with Monopoly Power
Summary
Questions for Review
Exercises
15 Investment, Time, and Capital Markets
15.1 Stocks versus Flows
15.2 Present Discounted Value
15.3 The Value of a Bond
15.4 The Net Present Value Criterion for Capital Investment Decisions
15.5 Adjustments for Risk
15.6 Investment Decisions by Consumers
15.7 Investments in Human Capital
*15.8 Intertemporal Production Decisions—Depletable Resources
15.9 How Are Interest Rates Determined?
Summary
Questions for Review
Exercises
PART FOUR: Information, Market Failure, and the Role of Government
16 General Equilibrium and Economic Efficiency
16.1 General Equilibrium Analysis
16.2 Efficiency in Exchange
16.3 Equity and Efficiency
16.4 Efficiency in Production
16.5 The Gains from Free Trade
16.6 An Overview—The Efficiency of Competitive Markets
16.7 Why Markets Fail
Summary
Questions for Review
Exercises
17 Markets with Asymmetric Information
17.1 Quality Uncertainty and the Market for Lemons
17.2 Market Signaling
17.3 Moral Hazard
17.4 The Principal–Agent Problem
*17.5 Managerial Incentives in an Integrated Firm
17.6 Asymmetric Information in Labor Markets: Efficiency Wage Theory
Summary
Questions for Review
Exercises
18 Externalities and Public Goods
18.1 Externalities
18.2 Ways of Correcting Market Failure
18.3 Stock Externalities
18.4 Externalities and Property Rights
18.5 Common Property Resources
18.6 Public Goods
18.7 Private Preferences for Public Goods
Summary
Questions for Review
Exercises
APPENDIX: The Basics of Regression
An Example
Estimation
Statistical Tests
Goodness of Fit
Economic Forecasting
Summary
Glossary
A
B
C
D
E
F
G
H
I
K
L
M
N
O
P
Q
R
S
T
U
V
W
Z
Answers to Selected Exercises
Photo Credits
Index
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
MICROECONOMICS
THE PEARSON SERIES IN ECONOMICS Abel/Bernanke/Croushore Macroeconomics* Bade/Parkin Foundations of Economics* Berck/Helfand The Economics of the Environment Bierman/Fernandez Game Theory with Economic Applications Blanchard Macroeconomics* Blau/Ferber/Winkler The Economics of Women, Men and Work Boardman/Greenberg/ Vining/Weimer Cost-Benefit Analysis Boyer Principles of Transportation Economics Branson Macroeconomic Theory and Policy Brock/Adams The Structure of American Industry Bruce Public Finance and the American Economy Carlton/Perloff Modern Industrial Organization Case/Fair/Oster Principles of Economics* Caves/Frankel/Jones World Trade and Payments: An Introduction Chapman Environmental Economics: Theory, Application, and Policy Cooter/Ulen Law & Economics Downs An Economic Theory of Democracy Ehrenberg/Smith Modern Labor Economics Ekelund/Ressler/Tollison Economics* Farnham Economics for Managers Folland/Goodman/Stano The Economics of Health and Health Care Fort Sports Economics Froyen Macroeconomics Fusfeld The Age of the Economist Gerber International Economics* González-Rivera Forecasting for Economics and Business Gordon Macroeconomics* Greene Econometric Analysis Gregory Essentials of Economics Gregory/Stuart Russian and Soviet Economic Performance and Structure Hartwick/Olewiler The Economics of Natural Resource Use Heilbroner/Milberg The Making of the Economic Society Heyne/Boettke/Prychitko The Economic Way of Thinking Hoffman/Averett Women and the Economy: Family, Work, and Pay Holt Markets, Games and Strategic Behavior Hubbard/O’Brien Economics* Money, Banking, and the Financial System* Hubbard/O’Brien/Rafferty Macroeconomics* Hughes/Cain American Economic History Husted/Melvin International Economics Jehle/Reny Advanced Microeconomic Theory Johnson-Lans A Health Economics Primer Keat/Young Managerial Economics Klein Mathematical Methods for Economics Krugman/Obstfeld/Melitz International Economics: Theory & Policy* Laidler The Demand for Money Leeds/von Allmen The Economics of Sports Leeds/von Allmen/Schiming Economics* Lipsey/Ragan/Storer Economics* Lynn Economic Development: Theory and Practice for a Divided World Miller Economics Today* Understanding Modern Economics Miller/Benjamin The Economics of Macro Issues Miller/Benjamin/North The Economics of Public Issues Mills/Hamilton Urban Economics Mishkin The Economics of Money, Banking, and Financial Markets* The Economics of Money, Banking, and Financial Markets, Business School Edition* Macroeconomics: Policy and Practice* Murray Econometrics: A Modern Introduction Nafziger The Economics of Developing Countries O’Sullivan/Sheffrin/Perez Economics: Principles, Applications and Tools* Parkin Economics* Perloff Microeconomics* Microeconomics: Theory and Applications with Calculus* Perman/Common/ McGilvray/Ma Natural Resources and Environmental Economics Phelps Health Economics Pindyck/Rubinfeld Microeconomics* Riddell/Shackelford/Stamos/ Schneider Economics: A Tool for Critically Understanding Society Ritter/Silber/Udell Principles of Money, Banking & Financial Markets* Roberts The Choice: A Fable of Free Trade and Protection Rohlf Introduction to Economic Reasoning Ruffin/Gregory Principles of Economics Sargent Rational Expectations and Inflation Sawyer/Sprinkle International Economics Scherer Industry Structure, Strategy, and Public Policy Schiller The Economics of Poverty and Discrimination Sherman Market Regulation Silberberg Principles of Microeconomics Stock/Watson Introduction to Econometrics Introduction to Econometrics, Brief Edition Studenmund Using Econometrics: A Practical Guide Tietenberg/Lewis Environmental and Natural Resource Economics Environmental Economics and Policy Todaro/Smith Economic Development Waldman Microeconomics Waldman/Jensen Industrial Organization: Theory and Practice Weil Economic Growth Williamson Macroeconomics * denotes MyEconLab titles Visit www.myeconlab.com to learn more
MICROECONOMICS E I G H T H E D I T I O N Robert S. Pindyck Massachusetts Institute of Technology Daniel L. Rubinfeld University of California, Berkeley Boston Columbus Indianapolis New York San Francisco Upper Saddle River Amsterdam Cape Town Dubai London Madrid Milan Munich Paris Montréal Toronto Delhi Mexico City São Paulo Sydney Hong Kong Seoul Singapore Taipei Tokyo
Editorial Director: Sally Yagan Editor in Chief: Donna Battista Executive Acquisitions Editor: Adrienne D’Ambrosio Editorial Project Manager: Sarah Dumouchelle Editorial Assistant: Elissa Senra-Sargent VP/Director of Marketing: Patrice Jones Director of Marketing: Maggie Moylan Executive Marketing Manager: Lori DeShazo Marketing Assistant: Kim Lovato Senior Managing Editor: Nancy H. Fenton Senior Production Project Manager: Kathryn Dinovo Senior Manufacturing Buyer: Carol Melville Cover Designer: Jonathan Boylan Image Manager: Rachel Youdelman Photo Researcher: Melody English Text Permissions Supervisor: Michael Joyce Media Director: Susan Schoenberg Executive Media Producer: Melissa Honig Content Lead, MyEconLab: Noel Lotz Supplements Editors: Alison Eusden and Kathryn Dinovo Full-Service Project Management: Integra Printer/Binder: R. R. Donnelley/Willard Cover Printer: Lehigh-Phoenix Color/Hagerstown Text Font: 10/12 Palatino Credits and acknowledgments borrowed from other sources and reproduced, with permission, in this textbook appear on the appropriate page within text or on page 731. Microsoft and/or its respective suppliers make no representations about the suitability of the information contained in the documents and related graphics published as part of the services for any purpose. All such documents and related graphics are provided “as is” without warranty of any kind. Microsoft and/or its respective suppliers hereby disclaim all warranties and conditions with regard to this information, includ- ing all warranties and conditions of merchantability, whether express, implied or statutory, fitness for a particular purpose, title and non-infringement. In no event shall Microsoft and/or its respective suppliers be liable for any special, indirect or consequential damages or any damages whatsoever resulting from loss of use, data or profits, whether in an action of contract, negligence or other tortious action, arising out of or in connection with the use or performance of information available from the services. The documents and related graphics contained herein could include technical inaccuracies or typograph- ical errors. Changes are periodically added to the information herein. Microsoft and/or its respective suppli- ers may make improvements and/or changes in the product(s) and/or the program(s) described herein at any time. Partial screen shots may be viewed in full within the software version specified. Microsoft® and Windows® are registered trademarks of the Microsoft Corporation in the U.S.A. and other countries. This book is not sponsored or endorsed by or affiliated with the Microsoft Corporation. Copyright © 2013, 2009, 2005, 2001 by Pearson Education, Inc., publishing as Prentice Hall. All rights reserved. Manufactured in the United States of America. This publication is protected by Copyright, and permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. To obtain permission(s) to use material from this work, please submit a written request to Pearson Education, Inc., Permissions Department, One Lake Street, Upper Saddle River, New Jersey 07458, or you may fax your request to 201-236-3290. Many of the designations by manufacturers and sellers to distinguish their products are claimed as trademarks. Where those designations appear in this book, and the publisher was aware of a trademark claim, the designations have been printed in initial caps or all caps. Library of Congress Cataloging-in-Publication Data Pindyck, Robert S. Microeconomics / Robert S. Pindyck, Daniel L. Rubinfeld. – 8th ed. 1. Microeconomics. HB172.P53 2013 338.5–dc23 p. cm. – (The Pearson series in economics) ISBN-13: 978-0-13-285712-3 ISBN-10: 0-13-285712-X I. Rubinfeld, Daniel L. II. Title. 10 9 8 7 6 5 4 3 2 1 2011049296 ISBN 10: 0-13-285712-X ISBN 13: 978-0-13-285712-3
To our daughters, Maya, Talia, and Shira Sarah and Rachel
ABOUT THE AUTHORS The authors, back again for a new edition, reflect on their years of successful textbook collaboration. Pindyck is on the right and Rubinfeld on the left. vi Revising a textbook every three or four years is hard work, and the last edition was well-liked by students. “So why is our publisher pushing for a new edition?” the authors wondered. “Were some of the examples becoming stale? Or might it have something to do with the used book market?” Could be both. In any case, here they are again, with a new edition that has sub- stantial improvements and lots of new examples. Robert S. Pindyck is the Bank of Tokyo-Mitsubishi Ltd. Professor of Economics and Finance in the Sloan School of Management at M.I.T. Daniel L. Rubinfeld is the Robert L. Bridges Professor of Law and Professor of Economics Emeritus at the University of California, Berkeley, and Professor of Law at NYU. Both received their Ph.Ds from M.I.T., Pindyck in 1971 and Rubinfeld in 1972. Professor Pindyck’s research and writing have covered a variety of topics in microeconom- ics, including the effects of uncertainty on firm behavior and market structure; the behavior of natural resource, commodity, and financial markets; environmen- tal economics; and criteria for investment decisions. Professor Rubinfeld, who served as chief economist at the Department of Justice in 1997 and 1998, is the author of a variety of articles relating to antitrust, competition policy, law and economics, law and statistics, and public economics. Pindyck and Rubinfeld are also co-authors of Econometric Models and Economic Forecasts, another best-selling textbook that makes a perfect gift (birthdays, weddings, bar mitzvahs, you name it) for the man or woman who has every- thing. (Buy several—bulk pricing is available.) These two authors are always looking for ways to earn some extra spending money, so they enrolled as human subjects in a double-blind test of a new hair restoration medication. Rubinfeld strongly suspects that he is being given the placebo. This is probably more than you want to know about these authors, but for further information, see their Web sites: http://web.mit.edu/rpindyck/www and http://www.law.berkeley.edu/faculty/rubinfeldd.
BRIEF CONTENTS • P A R T O N E Introduction: Markets and Prices 1 1 2 Preliminaries 3 The Basics of Supply and Demand 21 Individual and Market Demand 111 • P A R T T W O Producers, Consumers, and Competitive Markets 65 3 Consumer Behavior 67 4 5 Uncertainty and Consumer Behavior 159 6 7 8 9 Production 201 The Cost of Production 229 Profit Maximization and Competitive Supply 279 The Analysis of Competitive Markets 317 Pricing with Market Power 399 • P A R T T H R E E Market Structure and Competitive Strategy 355 10 Market Power: Monopoly and Monopsony 357 11 12 Monopolistic Competition and Oligopoly 451 13 Game Theory and Competitive Strategy 487 14 Markets for Factor Inputs 529 15 Investment, Time, and Capital Markets 559 • P A R T F O U R Information, Market Failure, and the Role of Government 593 16 General Equilibrium and Economic Efficiency 595 17 Markets with Asymmetric Information 631 18 Appendix: The Basics of Regression 700 Glossary 708 Answers to Selected Exercises 718 Photo Credits 731 Index 732 Externalities and Public Goods 661 vii
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