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The Myth of the Rational Voter: Why Democracies Choose Bad Policies

Bryan Caplan

Libertarian public choice

A provocative economist's argument that democracy systematically chooses bad policies because voters are not merely ignorant but irrational — they hold predictable biases (especially about economics) and indulge them precisely because, for any single voter, being wrong is costless. A bracing libertarian challenge to democratic faith that pairs naturally with the case for markets and for limiting what majorities decide.

About the author

American economist (b. 1971), professor at George Mason University and a prominent libertarian writer. Drawing on public-choice economics and behavioural research, Caplan argues across his books for skepticism about democratic decision-making and for the superiority of markets; The Myth of the Rational Voter is his best-known work.

Synopsis

Caplan distinguishes voter irrationality from mere ignorance, identifying systematic biases — anti-market, anti-foreign, make-work, and pessimistic — that lead the public to favour economically harmful policies. Because a single vote almost never decides an election, he argues, voters can indulge comfortable false beliefs at no personal cost ('rational irrationality'), so democracies predictably enact worse economic policy than the experts would.

Core passage idea

Paraphrase · Modern copyrighted work

Caplan argues that voters are not just ignorant but systematically irrational about economics — and that because one vote rarely matters, people indulge their biases at the ballot box at no cost to themselves.

Caplan's 'rational irrationality' explains how democracies can persistently choose bad policy without anyone behaving foolishly in their own life: the price of believing comfortable falsehoods at the ballot box is essentially zero. It is a public-choice case for relying more on markets and less on majorities.

To avoid a bubble

Pair with defenders of democracy and collective wisdom (from Dewey to theorists of deliberation and the 'wisdom of crowds') who argue that Caplan underrates voters, overrates economists' consensus, and would replace democratic accountability with rule by experts and markets.

Reading note

Clear and argumentative. Read it alongside Brennan's Against Democracy as the economic wing of the case against democratic faith, and against defenders of collective wisdom and deliberation.

Best paired with

Jason Brennan, Against Democracy; Joseph A. Schumpeter, Capitalism, Socialism and Democracy.

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