Public Choice Theory
Last updated: 2026-08-18
Categories: Home -> Political Science
This article is part of the Intermediate course on Libertarianism and the Austrian School of Economics -> State Interventions
Public Choice Theory (Public Choice) is the analysis of politics with the same tools as economics: rational individuals who pursue their own objectives, incentives, and constraints.
James Buchanan (Nobel 1986, together with Gordon Tullock) formulated it systematically. His best-known phrase is that politics must be studied “without romance”: one cannot assume that politicians, bureaucrats, or voters seek the “general interest” in a disinterested way.
For centuries, traditional political theory assumed a strange schizophrenia in human nature: it was believed that in the market people act selfishly (seeking their own benefit, like the baker or the consumer), but that as soon as those same people crossed the door of a ministry or a parliament, they were magically transformed into disinterested angels whose only purpose was to seek "the common good."
Politicians and bureaucrats as rational actors
Under the lens of Public Choice Theory, agents of the State respond to very clear incentives that do not always coincide with general welfare:
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The politician: His main objective is not social justice or the abstract common good, but to win and retain power. To achieve that, he needs votes, coalitions, and campaign financing. The public policies he designs are tools to satisfy key pressure groups, even if they harm the silent majority.
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The bureaucrat: Unlike the private entrepreneur who seeks to minimize costs and maximize efficiency, the public administrator (bureaucrat) tends to maximize his budget and the size of his agency. The more employees he has under him and the larger his budget, the greater his power, his status, and his salary.
Main ideas
The rationally ignorant voter
Becoming well informed about politics has a high cost and the benefit of one vote is almost nil.
Most people remain poorly informed. That makes it easier for organized groups to influence more than the average citizen.
Politicians and reelection
Politicians do not maximize social welfare. They maximize votes, power, or permanence in office.
That is why they prefer policies with visible and concentrated benefits now, and diffuse or future costs (Fiscal Deficit, Inflation, regulation that favors a sector).
The deficit problem (closely tied to what you were already thinking)
In their book Democracy in Deficit (Buchanan and Richard Wagner), they argue that Keynesianism broke the old implicit norm of a balanced budget. Before, spending more required raising taxes or cutting somewhere else, which had an immediate political cost.
By legitimizing the deficit “to stimulate,” that constraint was removed.
The predictable result: chronic deficits, because politicians have an incentive to spend now and leave the bill to the next government.
Concentration of benefits and dispersion of costs (Rent-Seeking)
The theory explains why state privileges and particular subsidies usually triumph over the general interest:
- Concentrated benefits: If a government grants a millionaire subsidy or a protectionist tariff to a specific industrial sector (for example, the manufacturers of a product), that small group of entrepreneurs will benefit enormously. They have a gigantic incentive to organize, lobby, finance campaigns, and press hard to obtain it.
- Dispersed costs: That subsidy is paid with the taxes of 20 million citizens. For the individual citizen, protesting or mobilizing over an amount of money he does not feel, that he does not know exactly how much it is, that he does not know how much he loses through taxes and inflation, is not worth it; for the entrepreneur, the millionaire prize is worth everything. The result is that special-interest groups capture the State to the detriment of society.
The costs are usually felt by citizens after years of these policies.
Fiscal illusion and indebtedness
Public Choice Theory directly backs the intuition about the Fiscal Deficit. Because citizens suffer from fiscal myopia and politicians suffer from electoral myopia (thinking only of the next elections), the system rewards indebtedness.
Politicians prefer to finance public spending through public debt or inflation (hidden taxes) rather than by raising direct and visible taxes. Why? Because debt and inflation defer the pain over time and hide the true culprit, allowing the politician to hang the medal of generosity on himself today and bequeath the economic bill to future governments or to the following generations.
In short, Public Choice Theory demonstrates that recurrent economic disasters, elephantine bureaucracy, and chronic deficit are not "accidents" nor the product of politicians who are wicked by nature, but the logical result of a system of perverse institutional incentives, where the rules allow rulers to distribute present benefits in exchange for future costs that nobody claims in time.
Relation to the Austrian tradition
There is affinity, not identity. Both distrust the idea of a benevolent State and emphasize incentives and unintended consequences.
Buchanan was more Wicksellian and constitutionalist.
The Austrian School of Economics puts more weight on Dispersed knowledge, Economic calculation, and the structure of capital.
But in the diagnosis of why politicians use spending and the deficit, the two traditions reinforce each other.
This article is part of the Intermediate course on Libertarianism and the Austrian School of Economics -> State Interventions
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Last updated: 2026-05-10
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