The Accidental Theorist

by Krugman, Paul

  The Accidental Theorist

  The Accidental Theorist

  And Other Dispatches from the Dismal Science

  Paul Krugman

  W. W. Norton & Company

  New York London

  Copyright © 1998 by Paul Krugman

  All rights reserved

  For information about permission to reproduce selections from this book, write to Permissions, W. W. Norton & Company, Inc., 500 Fifth Avenue, New York, NY 10110.

  The text of this book is composed in Adobe Caslon with the display set in Adobe Caslon.

  Composition by Chelsea Dippel

  Manufacturing by The Maple-Vail Book Manufacturing Group.

  Book design by BTD/Mary A. Wirth

  Library of Congress Cataloging-in-Publication Data

  Krugman, Paul.

  The accidental theorist: and other dispatches from the dismal science / by

  Paul Krugman.

  p. cm.

  ISBN: 978-0-393-07111-5

  1. Economics. I. Title.

  HB74.5.K78 1998

  330—dc21 97–51717

  CIP

  W. W. Norton & Company, Inc., 500 Fifth Avenue, New York, N.Y. 10110 http://www.wwnorton.com

  W. W. Norton & Company Ltd., 10 Coptic Street, London WC1A 1PU

  Contents

  Introduction

  Part 1: Jobs, Jobs, Jobs

  The Accidental Theorist

  Downsizing Downsizing

  Vulgar Keynesians

  Unmitigated Gauls: Liberté, Egalité, Inanité

  Part 2: Right-Wing Wrongs

  The Virus Strikes Again

  Supply-Side’s Silly Season

  An Unequal Exchange

  The Lost Fig Leaf: Why the Conservative Revolution Failed

  Gold Bug Variations: Understanding the Right-Wing Gilt Trip

  Part 3: Globalization and Globaloney

  We Are Not the World

  In Praise of Cheap Labor: Bad Jobs at Bad Wages Are Better than No Jobs at All

  The East Is in the Red: A Balanced View of China’s Trade

  Part 4: Delusions of Growth

  Technology’s Wonders: Not So Wondrous

  Four Percent Follies

  A Good Word for Inflation

  What Is Wrong with Japan?

  Seeking the Rule of the Waves

  Part 5: The Speculator’s Ball

  How Copper Came a Cropper

  The Tequila Effect

  Bahtulism: Who Poisoned Asia’s Currency Markets?

  Making the World Safe for George Soros

  Part 6: Beyond the Market

  Earth in the Balance Sheet: Economists Go for the Green

  Taxes and Traffic Jams

  Rat Democracy

  A Medical Dilemma

  The CPI and the Rat Race

  Looking Backward

  Introduction

  Economists are supposed to be boring. And the reputation is justified: Most of us really are quite boring, at least when we talk about our work. But then so are most other people, from scientists to supermodels. Why do economists get singled out?

  The answer, I believe, is unrequited longing. Economics matters to people—it is, as John Maynard Keynes put it, “dangerous for good or evil” in a way that, say, literary studies or even history are not. People come to economists in search of emotional or political satisfaction. They are therefore dismayed to find a discipline that seems to be all equations, diagrams, and impenetrable jargon.

  There are some excuses for that impenetrability. Economics, Keynes wrote elsewhere, is “a difficult and technical subject, but nobody will believe it.” The central ideas of economic theory are very simple: They boil down to little more than the proposition that people will usually take advantage of opportunities, plus the observation that my opportunities often depend on your actions and vice versa. But applying these ideas to particular cases—to the effects of technological progress on employment, of international trade on wages, of the money supply on economic growth—requires some close, hard thinking, thinking in which a bit of math and some specialized jargon can often help you stay on track. This is not to deny that much of what modern economists (or academics of any type) do is pointless technical showboating, using fancy math to say things that could just as well have been expressed in plain English—or for that matter to say things that would be obviously silly if their meaning were not obscured by the math. But not all of the technicality of modern economics is obscurantism; sometimes it is actually a way to make things clearer and simpler.

  Still, there should be a lot more accessible, interesting, even exciting writing about economics than there is. Astronomy is a difficult, technical subject, too; yet where is the economics equivalent of the late Carl Sagan? (Did you know that U.S. consumers spend trillions and trillions…never mind.) On many issues, including some of those where passions run highest, economics offers startlingly illuminating insights, insights that could with a little effort (all right, with a lot of effort) be explained without the jargon. Yet that explanation is usually not forthcoming. We are a profession without popularizers.

  But wait—aren’t there some very influential economic gurus, men whose books routinely grace the best-seller lists? Yes, there are, but they are not popularizers in the proper sense of the word. Sagan was a popularizer: He found a way to make serious astronomy—the discoveries and theories of professional astronomers—comprehensible and exciting to a wide audience. Our popular economics writers, however, are not in the business of giving their readers a ringside seat on the research action; with no exception I can think of, they use their books to do an end run around the normal structure of scholarship, to preach ideas that few serious economists share. Often, these ideas are not just at odds with the professional consensus; they are demonstrably wrong, and sometimes terminally silly. But they sound good to the unwary reader. In fact, as far as most people know—including people who regard themselves as well-informed, who watch public TV and read intellectual magazines—that is what economics sounds like.

  The essays in this volume represent attempts to do something about that. For most of my professional life I did what most academics do: I taught my classes, wrote papers for professional journals, and in general talked mainly with other academics. As far as I was concerned, getting at the truth and convincing a select audience of cognoscenti that I was right was all that mattered; it was somebody else’s job to communicate that truth to the world at large. To be honest, I would go back to those innocent days if I could; in a way I feel that I have been expelled from Eden. But there is no going back, for I have become all too aware that the truth does not, in fact, always prevail—that plausible charlatans can often convince even the great and good that they are men of wisdom, that economic ideas of (it seems to me) self-evident silliness often sound profound to the untrained ear. And I cannot count on somebody else to make the case for the kind of economics I believe in; if I want that case made, I’ll have to do it myself.

  Luckily, though it’s a tough job, it’s not impossible. If you work at it hard enough you can often find a way—a parable, a metaphor, a particular angle of approach—that makes a seemingly abstruse piece of economics easily accessible. And there is also a lot of pleasure, of sheer fun in the craft of writing clear English about a technical subject.

  And so a few years ago I found myself launched on a sort of second career, writing the sort of pieces that are collected in this book. Often I write articles that use some current issue as their starting point; I also often try either to explode some plausible-sounding idea that happens to be false or to promote some implausible, disturbing idea that happens to be true. But I always have the additional purpose of demonstrating what i
t means to think, really think, about economics.

  This second career has not always made me popular. Many people have strong ideas about economics, partly because our daily experience of getting and spending gives us a (sometimes false) sense of understanding the larger picture, partly because it is so easy to become convinced by economic doctrines that suit our political prejudices. How do people with such strong ideas react when an economist tells them that some things they thought were obviously true are actually quite false, as false as the folk medicine that says that people get ulcers because they worry too much;1 and that some ideas that they find distasteful are equally unambiguously true, as true as the theory of evolution by natural selection? Perhaps they should be grateful to be thus enlightened; but for some reason they usually aren’t. Moreover, some influential writers and speakers on economics have spent most of their careers, well, faking it: misrepresenting or even inventing facts, using clever rhetoric to cover gaping logical holes. Neither they nor the people who have been taken in by them are particularly happy to see this pointed out. And some people are simply outraged by the suggestion that economics is even potentially a subject in which hard thinking might force them to question their preconceptions—that is, wrote one angry op-ed author, an unforgiveable “accusation of illiteracy.” This was the attitude Keynes was referring to when he wrote that while economics is a difficult and technical subject, “nobody will believe it.”

  I may as well bring up one particular issue while I am on this topic. I sometimes find it necessary to name names—to illustrate a particular bad idea by citing an actual example of a prominent person who espouses that idea. This may look like malice—why get personal?—but I actually have a serious purpose. All too often, I have found, the peddlers of economic nonsense play a game of bait and switch—drawing their audience in with the promise of sophisticated analysis, then providing instead crudely simplistic stories. Worse yet, when somebody like me tries to argue against those simplistic stories, the usual response is “But nobody believes that,” followed almost instantly by a reiteration of the same idea, slightly restated. What’s a polemicist to do? Well, it turns out to be helpful to catch them with their hand in the cookie jar. Partly this is because I need to prove that real, important people do indeed hold the views I am criticizing—that I am not attacking straw men. But I also find that by showing how easy it is to be misled—to be convinced by an appealing, serious-sounding argument that can be shown to be nonsense pure and simple—I can convince my readers that they really do need to listen to what I have to say. Either that, or send me an abusive letter, an option that quite a few seem to prefer.

  But while I have not always made friends in my second career, I like to think that I have at least now and then influenced people.

  The pieces collected here are adapted from essays written between the fall of 1995 and the summer of 1997. It was an eventful period (but then aren’t they all?), and a fertile time for nonsense both right and left. The earliest piece in the collection was written in response to the mean-spirited nonsense spouted by America’s newly elected Republican House majority leader; one of the latest in response to the warm-hearted but unfortunately equally silly ideas of France’s newly elected Socialist prime minister. But anyway, left and right are not adequate categories: On most of the issues touched on in this collection, the orthodoxy of both liberals and conservatives is simply wrong, and in many cases the truth is something nobody wants to hear.

  About half of these articles were published in the online magazine Slate, where I have a regular monthly column, “The Dismal Science” most of the rest in such conventional print media as the Washington Monthly, Foreign Affairs, and the New York Times. A few of the pieces are new to print. Although many were written to some degree in response to current events, I am not a reporter; if I have anything to contribute to discussion of the news, it comes from putting that news in a longer-term context. Thus I hope that readers will find that the pieces have not dated too much, that all of them remain relevant.

  Although my ultimate purpose was serious, I enjoyed writing these pieces—even though all the old cliches are absolutely true: It is not only harder but more time-consuming to write a 1,300-word, plain-English article for the general public than to write a 5,000-word, equation-laden paper for a professional journal. I hope some of that enjoyment shows through, that readers find the essays fun as well as enlightening. But try them out and see.

  Part 1

  Jobs, Jobs, Jobs

  At the heart of capitalism’s inhumanity—and no sensible person will deny that the market is an amoral and often cruelly capricious master—is the fact that it treats labor as a commodity. Economics textbooks may treat the exchange of labor for money as a transaction much like the sale of a bushel of apples, but we all know that in human terms there is a huge difference. A merchant may sell many things, but a worker usually has only one job, which supplies not only his livelihood but often much of his sense of identity. An unsold commodity is a nuisance, an unemployed worker a tragedy; it is terribly unjust that such tragedies are created every day by new technologies, changing tastes, and the ever-shifting flows of world trade. There would be no excuse for an economic system that treats people like objects except that, as Churchill said of democracy, capitalism is the worst system known except all those others that have been tried from time to time. At the end of the twentieth century almost nobody believes that there is any good alternative to a market economy; at best we can hope to cushion people from the worst of that economy’s brutalities.

  But while almost everyone concedes that, like it or not, most jobs must be supplied by private, self-interested initiative, there is still much confusion about what that concession involves. Part of the problem is that many people are still unwilling to accept the idea that the labor market will not function well unless it is allowed to behave more or less like other markets. But this is not surprising—after all, not many people really understand the logic of markets in any case; they do not understand the process by which supply and demand often (not always) come into balance without any special encouragement. And there is also, I believe, a natural tendency to suppose that on those occasions when the market fails to provide jobs—when, for example, the economy plunges into a recession—the explanation must involve some deep flaw in the system. It is deeply implausible, even offensive, to suggest that the cause of so much suffering can be something as trivial, technical, and fixable as the failure to print enough money. Indeed, there would be no reason to believe such a silly story, except that it happens to be true.

  As a result, muddled thinking about the subject of jobs flourishes, in some cases at the highest levels of government. Particularly depressing for anyone who would like to believe in intellectual progress is the reappearance of decades-or even centuries-old fallacies, stated as if they were profound and novel insights—as if those who propound them have transcended conventional views, when in fact they have merely failed to understand them.

  The title essay in this collection was an effort to take on an old misunderstanding that has lately experienced a revival of popularity: the idea (sometimes referred to as the “lump of labor” fallacy) that there is only a limited amount of work to be done in the world, and that as productivity rises there is therefore a reduction in the number of jobs available. The idea has a surface plausibility from the experience of individual industries: It is indeed true, for example, that America’s railroads handle more freight now than they did in 1980, but employ barely a third as many workers. Doesn’t it follow that the same fate may await all jobs, that as workers become more productive the economy will need ever fewer of them? It is hard to explain that this involves a fallacy of composition, that the effect of a productivity increase in a given industry on the number of jobs in that industry is very different from the effect of a productivity increase in the economy as a whole on the total number of jobs. In the essay I tried to find a painless way of making that point—and along the w
ay to give readers some idea of what it really means to think about economics, what economic theory really is.

  The essay made some use of the fact that despite large productivity gains in some parts of the U.S. economy—and stagnant employment in manufacturing, mainly because of those productivity gains—America has, just as theory would predict, actually done quite well at employing its growing labor force. Yet there was a period in 1995 and 1996 when the headlines were dominated by stories of layoffs, to such an extent that it was hard to remember that despite the prevalence of such stories the U.S. economy was actually creating jobs at a near-record pace. In the second piece, “Downsizing Downsizing,” I tried to talk about this gap between perception and reality. (For the record: My remark about “emotionally satisfying fictions” was in the original version, written when Robert Reich was still Labor Secretary.)