The Crisis in Economics
Edited by Edward Fullbrook
Routledge, 226 pages
In June of 2000 a group of
French university students published a petition protesting the narrow scope of
the economics they were being taught, calling for educators to adopt a more ÒpluralistÓ
approach to the subject. This book consists of nine documents or
Òmanifestos," including the original petition, forming the basis of the
Òpost-autistic economicsÓ movements, as well as 43 brief essays by prominent
academics discussing the movement. As it is impossible to do justice to such a
diverse body of material in a brief review such as this one, I will simply draw
attention to particular highlights and general themes in the book.
The four bullet points of the
student's petition are:
1. We wish to escape from imaginary worlds!
2. We oppose the uncontrolled use of mathematics!
3. We are for a pluralism of approaches to economics!
4. Call to teachers to wake up before it is too late!
(Yes, each item really ends
in an exclamation point.)
The best essay in the book is
Tony LawsonÕs ÒBack to reality.Ó Lawson debunks the notion that the aim of
science, a la Friedman, is to hunt through data for event regularities.
Instead, the goal is to find causative factors. The na•ve hunt for event
regularities has yield little economic knowledge; indeed, Òeconometricians
repeatedly find that their supposed correlations are no sooner reported than
they are found to break down.Ó
Another fine essay is Deirdre
McCloskey's ÒBooks of oomph,Ó on how other subjects, such as literary criticism
and linguistics, have achieved a high degree of precision without the use of
mathematics. (McCloskey, however, does not seem to understand what Collingwood
meant by "scissors-and-paste history.")
I award the prize for the
worst essay to James Galbraith. Writing in the wake of 9/11, Galbraith is
positively gleeful in declaring that America faces Òan economic calamityÓ and
must embrace Òthe war economy,Ó by which he means state planning, massive
government spending increases, exchange rate controls, and so forth. He is
anxious that the effects of his policies not be Òdissipated in savings,Ó
reviving the daft Keynesian notion that saving is a form of waste.
Many of the authors suspect
that neoclassical economics is a cover for libertarian ideology, which is
somewhat amusing, given that people like Murray Rothbard often suspected it of
being a cover for interventionist ideology! Geoffrey Hodgson exemplifies this
tendency, writing: ÒTo some extent [the Cold War] may explain why Western
economics was increasingly dominated by pro-market ideology from 1948 to 1991.Ó
But surely Òpro-market ideologyÓ became even more popular with the fall of the
Soviet Union in 1991!
Many of the authors in this
volume are guilty of misdirecting their attacks on the currently dominant,
Òrational choice, utility maximizingÓ approach to economics, an approach that
has invaded other social sciences, most notably political theory. A recurring
motif in these essays is that rational choice theory paints an egregiously
distorted picture of human behavior: real people are not flawless,
utility-calculating supercomputers possessing all data relevant to their
situations. Nor, these critics protest, do actual humans choose a course of
action based purely on a rational appraisal of how to best satisfy their own,
selfish desires—real people, in their choices, take into account social
norms, unexamined customs, religious beliefs, and the approval and well-being
of others.
However, if rational choice
theory is reduced to its essential core, then these complaints are irrelevant.
The bare fact that a person chooses to act logically entails that he is acting
to improve his situation as he understands it. The truth of that insight is not
contingent upon the accuracy of that personÕs view of his circumstances. From
this abstract perspective, an action is Òrational,Ó not because some reasonable
observer judges it to be a sensible way of proceeding, but solely based on its
meeting the formal criteria of being an undertaking deliberately to achieve an
end.
Furthermore, the relevance of
rational choice theory, in its pure form, does not hinge upon any restrictive
assumptions concerning an agentÕs motives or goals. One person might act solely
with the aim of achieving the greatest sensual pleasure, while another might
choose thoroughgoing altruism. But both actors are pursuing self-chosen ends by
the most efficacious means they have conceived.
However, rational choice
theory, as it is often employed today, is open to a serious criticism, one that
most of its adversaries in this work have failed to isolate. The defect
plaguing many current applications rational choice is that, in order to compel
the basic theory to produce quantitative predictions about real-world economic
phenomena, practitioners often introduce further, arbitrary assumptions into
their models, for example, positing that all agents in the model are motivated
solely by a desire to maximize their monetary gains. Such an assumption
certainly makes it easier to plug numeric values into a model and churn out an
ostensibly precise answer. But, strictly speaking, that assumption is always
false, and may be wildly off the mark in particular cases. It is such modified
versions of rational choice theory, rather than the basic theory itself, that
are open to the objections raised in this work.
However, despite these flaws,
this book offers a useful survey of the state of heterodox economics today, as
well as holding out some encouragement that the hegemony of the mainstream is
not invincible.