Chicago School of Economics

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This article is part of the Basic Liberalism Course -> Module 4: Main Schools of Economics

Last updated: 2026-05-17

Unlike the schools we have already described (classical, neoclassical, and Austrian), the Chicago School is not a heterodox school, but a hyper-empirical and free-market branch within the mainstream (mainstream refers to the Neoclassical School of Economics).

It was born at the University of Chicago (USA) and represents the most pro-market and anti-Keynesian wing of orthodox economic thought in the 20th century. Its implicit motto is: “empirical evidence above all” and “markets work better than the State”.

1. Origins and key thinkers

Generation / Era	Main Thinker	Key Work	Fundamental Contribution
Precursors (1930s-50s)	Frank Knight Jacob Viner	Risk, Uncertainty and Profit (1921)	Emphasis on uncertainty, price as a signal, and critique of socialism.
Golden Age (1950s-80s)	Milton Friedman (1912-2006)	Capitalism and Freedom (1962) A Monetary History of the United States (1963)	Monetarism, “inflation is always and everywhere a monetary phenomenon”.
Golden Age	George Stigler (1911-1991)	Theory of economic regulation	“Capture theory”: regulations benefit the regulated.
Golden Age	Gary Becker (1930-2014)	Human Capital (1964) Treatise on the Family (1981)	Extension of economics to all human spheres (crime, discrimination, family).
Golden Age	Ronald Coase (1910-2013)	“The Problem of Social Cost” (1960)	Coase Theorem: property rights resolve externalities without state intervention.
Second Generation (1970s-2000s)	Robert Lucas (1937-2023)	Lucas Critique (1976)	Rational expectations: economic policy is ineffective if people anticipate it.
Second Generation	Eugene Fama (1939-)	Efficient Markets Hypothesis	Prices reflect all available information.
Current	Richard Posner, Steven Levitt (Freakonomics), John Cochrane	—	Economic analysis of law and radical empirical applications.

2. Main concepts

Monetarism: The quantity of money is the key determinant of inflation and the economic cycle. The Federal Reserve must follow a fixed rule of monetary growth (Friedman initially proposed 3-5% annually). Total rejection of Keynesian fiscal policy.
Positive vs. normative economics (Friedman): Economic science must be descriptive and empirical, not prescriptive. Use data, regressions, and statistical tests (Popperian falsificationist method applied to economics).
Efficient markets and rational expectations hypothesis: Prices incorporate all information; agents rationally anticipate policies. Therefore, state intervention is useless or counterproductive.
Human capital theory (Becker): Education, health, and skills are rational investments by the individual. Extension of microeconomics to sociology and psychology.
Economic analysis of law and regulation (Coase, Stigler, Posner): Market failures are better resolved with clear property rights than with state regulation. Regulations are often captured by private interests.
Pragmatic laissez-faire: Less State than Keynesian neoclassicals, but not as radical as the Austrians. They accept central bank, negative income tax (Friedman), and some minimal interventions.

3. Underlying philosophical vision

The Chicago School is empiricist, positivist, and utilitarian. It believes in economic science as an almost experimental discipline (data + econometrics).
The human being is a rational maximizer homo economicus with rational expectations.
Economic freedom is instrumental (generates prosperity), not an absolute moral value as in the Austrian School.
It rejects historicism and Keynesian interventionism, but accepts the neoclassical mathematical framework and the empirical method.

4. Main criticisms (Austrian approach and others)

Austrian criticisms (Mises, Hayek, Rothbard, Huerta de Soto):

Empirical positivism: Economics is not a laboratory science. Historical data is never “pure” (ceteris paribus problem). Austrian praxeology is deductive and a priori; Chicago is inductive and falsifiable, which makes it vulnerable to “garbage econometrics” (Mises called it “pseudo-science”).
Central bank and monetarism: Friedman accepted the state monopoly of money and only asked for fixed rules. The Austrians (Hayek, Mises) demand 100% bank reserves and monetary competition (or gold standard). Friedman's monetary rule does not prevent bubbles (as seen in 2008).
Rational expectations and efficient markets: They ignore dispersed and tacit knowledge (Hayek) and the role of the Kirznerian entrepreneur who discovers opportunities in real uncertainty, not in probabilistic models.
Pragmatic utilitarianism: Defends the market for results (efficiency), not for ethical principles of private property and non-aggression (Rothbard). That is why Friedman supported the negative income tax and voucherized public education, things that the Austrians reject as interventionism.
Excessive mathematical method: Although less abstract than Walras, it still falls within the static neoclassical equilibrium.

Austrian response: Chicago was a tactical ally against Keynesianism (Friedman and Hayek were friends and shared the 1974 Nobel), but it represents a lukewarm and statistical liberalism. Its political success (Reagan, Thatcher) came precisely from the Austrian ideas that Friedman popularized, but diluted their radicalism.

What is Monetarism?

Simple definition: Economic theory developed mainly by Milton Friedman and Anna Schwartz (especially in their book A Monetary History of the United States, 1963) that holds that inflation and economic fluctuations are, ultimately, monetary phenomena.
Central ideas:
- “Inflation is always and everywhere a monetary phenomenon” (famous phrase by Friedman).
- The quantity of money in circulation (money supply) determines the general level of prices in the long run.
- Proposes a fixed monetary rule: the money supply must grow at a constant and predictable rate (for example, 3-5% annually, equal to the real growth of the economy), instead of letting the central bank act discretionarily.
- Rejects Keynesian fiscal policy (public deficit to stimulate) and prioritizes control of the quantity of money.
Historical success: In the 1970s-80s it explained stagflation (inflation + unemployment) that Keynesianism could not explain. It influenced Reagan's (USA), Thatcher's (UK) policies and the creation of independent central banks.

Austrian critique (brief and direct):

The Austrians (Mises, Hayek, Rothbard) agree that inflation is monetary, but radically disagree on the cause and the solution:

For the Austrians the problem is not only the quantity of money, but its asymmetric injection through bank credit (artificial credit expansion), which distorts the temporal structure of production (Austrian business cycle theory).
A fixed monetary rule (monetarism) is still state intervention and generates cycles; the only coherent solution is free banking (private banks issuing money backed by gold or commodities) or, in Rothbard, 100% reserves.
Friedman and those from Chicago see the cycle as a problem of “too much or too little” money; the Austrians see it as a problem of bad signals of relative prices caused by the central bank.

5. Current legacy

It dominated Western economic policy from 1980 until the 2008 crisis. It influenced deregulation, the Washington Consensus, and the independence of central banks. Today it remains strong in finance (efficient markets) and in conservative/libertarian think-tanks, but lost ground to New Keynesian Economics and behavioral economics. In 2026 it is still the most taught school in “pro-market” economics departments in the US.

This article is part of the Basic Liberalism Course -> Module 4: Main Schools of Economics

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Last updated: 2026-05-17

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