Aha: Last week’s review in The Telegraph of Bryan Caplan’s "The Myth of the Rational Voter" is now up.
It’s rare to find a book of popular economics that is
simple enough to follow and yet answers one of the important questions
about the world. Bryan Caplan, a professor at George Mason University,
has managed both feats with The Myth of the Rational Voter, the question answered being: why do we get such lousy economic policies from politicians?
The
consensus among economists is strong on certain subjects: protectionist
trade rules and tariffs make us poorer, rent control destroys the
rental housing market, minimum wages are harmful; yet these are exactly
the policies that pop up time after time, as proposed solutions from
our politicians.
Why is this so? Perhaps politicians are irrational.
Yet, as Caplan points out, to stay in power, politicians have to do a
minimum of what we want them to. Perhaps they are being rational and
giving us what we think we want.
So it is us, the
voters, irrationally pushing for policies that economists state are
against our interests. And yet almost the first precept of economics is
that we are rational. We respond to the incentives before us, which is
why markets work as they do.
Caplan has to show
that we are rational when facing the normal incentives of life, but
irrational when acting on the larger political stage as voters. This he
does very well.
At the heart of the book is one of
his academic papers, in which he looks at what economists think about
economics and political policies, and what the general public think
about them.
One complaint about economists is that
nearly all are rich white men in comfortable jobs facing little risk of
unemployment – of course their views support a system that is good to
rich white guys in secure jobs.
But using survey
evidence Caplan allows for these factors and show us what would be the
views of everyone, rich and poor, if they had studied economics to PhD
level. We underestimate the power of markets to "harmonise private
greed and the public interest", we have an anti-foreign bias, we
confuse employment with production and we’re too pessimistic. While
this explains the poverty of the policies we vote for, how can we
function in markets at all if we are so irrational?
When
we act in a market we are directly affected and thus have strong
incentives to get the right answer. But one vote counts for so little
that the cost of being altruistic is tiny: we vote not for what will
benefit us, but for what will benefit everyone. It’s precisely because
people don’t vote with their wallets that the confused economic views
of the average voter lead to such confused economic policies.
There
are number of possible solutions: restrict the franchise, restrict
democracy, but one of Caplan’s proposals would solve most of problems:
move decisions from the political realm, where we are irrational, to
the market one, where we are rational.
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