Dear Stud ent,
My object ive in writ
ing this b ook is to
provide yo u with ev
erything y ou need f
or
success in the cours
e and to i mprove y
our ability to make
better dec isions in y
our
everyday life – espe
cially und erstandin
g econom ic issues i
n the new s. My wri
ting
style is int ended to
be engag ing, clear,
and strai ghtforwa
rd with an emphasis
on
real-world applicatio
ns. As I w as writing
the text, I viewed m
yself expla ining the
concepts to a stude
nt in my o ffice. As a
result, th ere is a co
nversation al tone to
the text. T o avoid b
oredom, t he text us
es a fast-p aced, acti
on-packe d approac
h
that expla ins all ess
ential con cepts with
out becom ing an en
cyclopedi a.
As a princ iples of ec
onomics i nstructor
for over 3 0 years, I
know from first-hand
experienc e that ma
ny studen ts are app
rehensive about ta
king econ omics. In
fact,
I still reca ll vividly t
hat, as a freshman
about to take my
first econ omics cou
rse,
I had only the vagu
est idea o f what th
is subject was abou
t. To my d elight, my
freshman principles
of econo mics cour
se opened my eyes
to a new way of
thinking. And my y
ears of te aching th
is powerf ul reasoni
ng proces s inspired
me
to try to w rite a text
that conv eyed my e
xcitement about ec
onomics t o student
s.
Please rea d through
the prefa ce, which
takes you on a tou
r of the sp ecial
pedagogi cal featur
es and an cillary ma
terials tha t have be
en create d to help
you maxim ize your le
arning ex perience w
ith this te xtbook.
Regards,
Irvin Tuck er
Irvin Tucker
9780538469418_mic_se_wkg.indd 29780538469418_mic_se_wkg.indd 2 8/14/10 1:18 AM8/14/10 1:18 AM
Copyright 2010 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s).
Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it.
Dear Stud ent,
My object ive in writ
ing this b ook is to
provide yo u with ev
erything y ou need f
or
success in the cours
e and to i mprove y
our ability to make
better dec isions in y
our
everyday life – espe
cially und erstandin
g econom ic issues i
n the new s. My wri
ting
style is int ended to
be engag ing, clear,
and strai ghtforwa
rd with an emphasis
on
real-world applicatio
ns. As I w as writing
the text, I viewed m
yself expla ining the
concepts to a stude
nt in my o ffice. As a
result, th ere is a co
nversation al tone to
the text. T o avoid b
oredom, t he text us
es a fast-p aced, acti
on-packe d approac
h
that expla ins all ess
ential con cepts with
out becom ing an en
cyclopedi a.
As a princ iples of ec
onomics i nstructor
for over 3 0 years, I
know from first-hand
experienc e that ma
ny studen ts are app
rehensive about ta
king econ omics. In
fact,
I still reca ll vividly t
hat, as a freshman
about to take my
first econ omics cou
rse,
I had only the vagu
est idea o f what th
is subject was abou
t. To my d elight, my
freshman principles
of econo mics cour
se opened my eyes
to a new way of
thinking. And my y
ears of te aching th
is powerf ul reasoni
ng proces s inspired
me
to try to w rite a text
that conv eyed my e
xcitement about ec
onomics t o student
s.
Please rea d through
the prefa ce, which
takes you on a tou
r of the sp ecial
pedagogi cal featur
es and an cillary ma
terials tha t have be
en create d to help
you maxim ize your le
arning ex perience w
ith this te xtbook.
Regards,
Irvin Tuck er
Irvin Tucker
9780538469418_mic_se_wkg.indd 29780538469418_mic_se_wkg.indd 2 8/14/10 1:18 AM8/14/10 1:18 AM
Copyright 2010 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s).
Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it.
Microeconomics for Today
IRVIN B. TUCKER UNIVERSITY OF NORTH CAROLINA CHARLOTTE
7 T H E D I T I O N
Australia • Brazil • Japan • Korea • Mexico • Singapore • Spain • United Kingdom • United States
Copyright 2010 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s).
Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it.
This is an electronic version of the print textbook. Due to electronic rights restrictions, some third party content may be suppressed. Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. The publisher reserves the right to remove content from this title at any time if subsequent rights restrictions require it. For valuable information on pricing, previous editions, changes to current editions, and alternate formats, please visit www.cengage.com/highered to search by ISBN#, author, title, or keyword for materials in your areas of interest.
Copyright 2010 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s).
Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it.
http://www.cengage.com/highered
© 2011, 2009 South-Western, a part of Cengage Learning
ALL RIGHTS RESERVED. No part of this work covered by the copyright herein may be reproduced, transmitted, stored or used in any form or by any means graphic, electronic, or mechanical, including but not limited to photocopying, recording, scanning, digitizing, taping, Web distribution, information networks, or information storage and retrieval systems, except as permitted under Section 107 or 108 of the 1976 United States Copyright Act, without the prior written permission of the publisher.
Library of Congress Control Number: 2010934780
ISBN 13: 978-0-538-46941-8
ISBN 10: 0-538-46941-2
South-Western Cengage Learning 5191 Natorp Boulevard Mason, OH 45040 USA
Cengage Learning is a leading provider of customized learning solutions with offi ce locations around the globe, including Singapore, the United Kingdom, Australia, Mexico, Brazil, and Japan. Locate your local offi ce at: international.cengage.com/region
Cengage Learning products are represented in Canada by Nelson Education, Ltd.
For your course and learning solutions, visit academic.cengage.com
Purchase any of our products at your local college store or at our preferred online store www.cengagebrain.com
Microeconomics for Today, Seventh Edition Irvin B. Tucker
Vice President, Editorial Director: Jack W. Calhoun
Publisher: Joe Sabatino
Senior Acquisitions Editor: Steven Scoble
Developmental Editor: Michael Guendelsberger
Senior Marketing Manager: John Carey
Senior MarCom Manager: Sarah Greber
Content Project Manager: Kelly Hillerich
Editorial Assistant: Allyn Bissmeyer
Marketing Coordinator: Suellen Ruttkay
Media Editor: Deepak Kumar
Senior Frontlist Buyer, Manufacturing: Sandra Milewski
Production Service: PreMediaGlobal
Senior Art Director: Michele Kunkler
Cover and Internal Designer: Kim Torbeck/ Imbue Design
Cover Image: © Media Bakery; © IMAGEMORE Co, Ltd.
Printed in Canada 1 2 3 4 5 6 7 14 13 12 11 10
For product information and technology assistance, contact us at Cengage Learning Customer & Sales Support, 1-800-354-9706
For permission to use material from this text or product, submit all requests online at cengage.com/permissions
Further permissions questions can be emailed to permissionrequest@cengage.com
Copyright 2010 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s).
Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it.
http://www.cengagebrain.com
mailto:permissionrequest@cengage.com
iii
IRVIN B. TUCKER Irvin B. Tucker has over thirty years of experience teaching introductory economics at the University of North Carolina Charlotte. He earned his B.S. in economics at N.C. State University and his M.A. and Ph.D. in economics from the University of South Carolina. Dr. Tucker is former director of the Center for Economic Education at the University of North Carolina Charlotte and a longtime member of the National Council on Economic Education. He is recognized for his ability to relate basic principles to economic issues and public policy. His work has received national recognition by being awarded the Meritorious Levy Award for Excellence in Private Enterprise Education, the Federation of Independent Business Award for Postsecondary Educator of the Year in Entrepreneurship and Economic Education, and the Freedom Foundation’s George Washington Medal for Excellence in Economic Education. In addition, his research has been published in numer- ous professional journal articles on a wide range of topics including industrial organiza- tion, entrepreneurship, and economics of education. Dr. Tucker is also the author of the highly successful Survey of Economics, seventh edition, a text for the one-semester principles of economics courses, published by Cengage South-Western Publishing.
About the Author
Copyright 2010 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s).
Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it.
iv
Brief Contents
PART 1 Introduction to Economics 1 Chapter 1 Introducing the Economic Way of Thinking 2 Appendix to Chapter 1: Applying Graphs
to Economics 21
Chapter 2 Production Possibilities, Opportunity Cost, and Economic Growth 34
PART 2 Microeconomic Fundamentals 57 Chapter 3 Market Demand and Supply 58 Appendix to Chapter 3: Consumer Surplus,
Producer Surplus, and Market Effi ciency 91
Chapter 4 Markets in Action 100 Appendix to Chapter 4: Applying Supply
and Demand Analysis to Health Care 125
Chapter 5 Price Elasticity of Demand and Supply 129
Chapter 6 Consumer Choice Theory 153 Appendix to Chapter 6: Indifference Curve Analysis 168
Chapter 7 Production Costs 181
PART 3 Market Structures 211 Chapter 8 Perfect Competition 212
Chapter 9 Monopoly 240
Chapter 10 Monopolistic Competition and Oligopoly 267
Chapter 11 Labor Markets 294
PART 4 Microeconomic Policy Issues 321 Chapter 12 Income Distribution, Poverty, and Discrimination 322
Chapter 13 Antitrust and Regulation 348
Chapter 14 Environmental Economics 373
PART 5 The International Economy 401 Chapter 15 International Trade and Finance 402
Chapter 16 Economies in Transition 434
Chapter 17 Growth and the Less-Developed Countries 457
Copyright 2010 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s).
Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it.
v
Appendix A Answers to Odd-Numbered Study Questions and Problems 481
Appendix B Answers to Practice Quizzes 495
Appendix C Answers to Road Map Questions 497
Glossary 498
Index 511
BRIEF CONTENTS
Copyright 2010 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s).
Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it.
vi
Contents
About the Author iii
Preface xvi
PART 1
Introduction to Economics 1
CHAPTER 1
Introducing the Economic Way of Thinking 2
The Problem of Scarcity 3
Scarce Resources and Production 3
Economics: The Study of Scarcity and Choice 5
The Methodology of Economics 6
CHECKPOINT Can You Prove There Is No Trillion-Dollar Person? 9
Hazards of the Economic Way of Thinking 9
CHECKPOINT Should Nebraska State Join a Big-Time Athletic Conference? 10
YOU’RE THE ECONOMIST Mops and Brooms, the Boston Snow Index, the Super Bowl, and Other Economic Indicators 11
Why Do Economists Disagree? 12
Careers in Economics 13
YOU’RE THE ECONOMIST Does Raising the Minimum Wage Help the Working Poor? 14
APPENDIX TO CHAPTER 1
Applying Graphs to Economics 21
A Direct Relationship 21
An Inverse Relationship 23
The Slope of a Straight Line 24
The Slope of a Curve 26
A Three-Variable Relationship in One Graph 27
A Helpful Study Hint for Using Graphs 29
1
Copyright 2010 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s).
Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it.
CONTENTS vii
CHAPTER 2
Production Possibilities, Opportunity Cost, and Economic Growth 34
Three Fundamental Economic Questions 35
Opportunity Cost 36
Marginal Analysis 37
The Production Possibilities Curve 38
The Law of Increasing Opportunity Costs 40
Sources of Economic Growth 42
YOU’RE THE ECONOMIST FedEx Wasn’t an Overnight Success 45
CHECKPOINT What Does a War on Terrorism Really Mean? 45
Present Investment and the Future Production Possibilities Curve 46
GLOBAL ECONOMICS How Does Public Capital Affect a Nation’s Curve? 47
PART 1 ROAD MAP 54
PART 2
Microeconomic Fundamentals 57
CHAPTER 3
Market Demand and Supply 58
The Law of Demand 59
The Distinction Between Changes in Quantity Demanded and Changes in Demand 61
Nonprice Determinants of Demand 63
CHECKPOINT Can Gasoline Become an Exception to the Law of Demand? 66
The Law of Supply 68
CHECKPOINT Can the Law of Supply Be Repealed for the Oil Market? 70
The Distinction Between Changes in Quantity Supplied and Changes in Supply 70
Nonprice Determinants of Supply 74
YOU’RE THE ECONOMIST PC Prices: How Low Can They Go? 75
GLOBAL ECONOMICS The Market Approach to Organ Shortages 78
2
Copyright 2010 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s).
Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it.
viii CONTENTS
A Market Supply and Demand Analysis 78
Rationing Function of the Price System 82
CHECKPOINT Can the Price System Eliminate Scarcity? 82
APPENDIX TO CHAPTER 3
Consumer Surplus, Producer Surplus, and Market Effi ciency 91
Consumer Surplus 91
Producer Surplus 92
Market Effi ciency 94
CHAPTER 4
Markets in Action 100
Changes in Market Equilibrium 101
CHECKPOINT Why the Higher Price for Ethanol Fuel? 104
Can the Laws of Supply and Demand Be Repealed? 105
YOU’RE THE ECONOMIST Rigging the Market for Milk 110
CHECKPOINT Is There Price-Fixing at the Ticket Window? 111
YOU’RE THE ECONOMIST Can Vouchers Fix Our Schools? 116
CHECKPOINT Should There Be a War on Drugs? 118
APPENDIX TO CHAPTER 4
Applying Supply and Demand Analysis to Health Care 125
The Impact of Health Insurance 125
Shifts in the Demand for Health Care 127
Shifts in the Supply of Health Care 128
CHAPTER 5
Price Elasticity of Demand and Supply 129
Price Elasticity of Demand 130
Price Elasticity of Demand Variations Along a Demand Curve 135
CHECKPOINT Will Fliers Flock to Low Summer Fares? 138
Determinants of Price Elasticity of Demand 138
CHECKPOINT Can Trade Sanctions Affect Elasticity of Demand for Cars? 139
Copyright 2010 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s).
Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it.
CONTENTS ix
YOU’RE THE ECONOMIST Cigarette Smoking Price Elasticity of Demand 140
Other Elasticity Measures 141
CHECKPOINT Can Honda Compete with Itself? 146
CHAPTER 6
Consumer Choice Theory 153
From Utility to the Law of Demand 154
YOU’RE THE ECONOMIST Why is Water Less Expensive than Diamonds? 156
CHECKPOINT When Dining Out, Do You Eat Smart? 159
Income and Substitution Effects and the Law of Demand 160
YOU’RE THE ECONOMIST Testing the Law of Demand with White Rats 161
CHECKPOINT Does the Substitution Effect Apply to Buying a Car? 162
APPENDIX TO CHAPTER 6
Indifference Curve Analysis 168
Constructing an Indifference Curve 168
Why Indifference Curves Are Downward-Sloping and Convex 168
The Indifference Map 170
The Budget Line 171
A Consumer Equilibrium Graph 173
Derivation of the Demand Curve 174
CHAPTER 7
Production Costs 181
Costs and Profi t 182
CHECKPOINT Should the Professor Go or Stay? 184
Short-Run Production Costs 184
Short-Run Cost Formulas 187
Marginal Cost Relationships 191
CHECKPOINT Did Michael Jordan Beat the Marginal-Average Rule? 193
Copyright 2010 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s).
Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it.