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Milton Friedman: Champion of Free Markets
Monetarism, A Monetary History, and Free to Choose
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Milton Friedman was one of the most influential economists of the twentieth century and a leading defender of free markets. He argued that voluntary exchange, competition, and clear price signals usually allocate resources better than heavy government control. His ideas shaped debates about inflation, monetary policy, taxes, school choice, and the role of government. Understanding Friedman helps students see how economic theories can influence public policy and everyday life.
Friedman is closely associated with monetarism, the view that changes in the money supply are a major cause of changes in prices, output, and inflation. In A Monetary History of the United States, written with Anna Schwartz, he argued that Federal Reserve mistakes helped deepen the Great Depression. Through the Chicago school of economics and the television series Free to Choose, he brought academic arguments about markets to a wide public audience. He won the Nobel Prize in Economics in 1976 for work on consumption, monetary history, and stabilization policy.
Key Facts
- Milton Friedman lived from 1912 to 2006 and became a central figure in the Chicago school of economics.
- Monetarism emphasizes the money supply as a key driver of inflation and business cycles.
- Quantity theory of money: M × V = P × Y, where M is money supply, V is velocity, P is price level, and Y is real output.
- Approximate inflation relation: inflation ≈ money growth + velocity growth - real output growth.
- Friedman argued that inflation is always and everywhere a monetary phenomenon when sustained over time.
- Friedman received the 1976 Nobel Prize in Economics and helped popularize market-oriented policy through Free to Choose.
Vocabulary
- Monetarism
- Monetarism is the theory that changes in the money supply are a major cause of inflation and fluctuations in the economy.
- Money Supply
- The money supply is the total amount of money available in an economy at a given time.
- Free Market
- A free market is an economic system in which prices and production are mainly guided by voluntary exchange and competition.
- Price Signal
- A price signal is information carried by prices that helps buyers and sellers decide what to produce, buy, or sell.
- Chicago School
- The Chicago school is a tradition of economics associated with the University of Chicago that emphasizes markets, incentives, and limited government intervention.
Common Mistakes to Avoid
- Calling Friedman opposed to all government action is wrong because he supported some government roles, including a stable monetary framework and certain basic rules for markets.
- Assuming monetarism says only money matters is wrong because Friedman recognized real output, expectations, institutions, and policy rules, while emphasizing money as especially important for inflation.
- Using M × V = P × Y as if velocity is always constant is wrong because velocity can change, especially during financial stress or shifts in payment behavior.
- Confusing free market advocacy with a claim that markets are perfect is wrong because Friedman argued that markets often outperform government planning, not that every market outcome is flawless.
Practice Questions
- 1 Using M × V = P × Y, suppose M = 500, V = 4, and Y = 1000. What is the price level P?
- 2 If money supply grows by 7 percent, velocity is unchanged, and real output grows by 2 percent, estimate the inflation rate using inflation ≈ money growth + velocity growth - real output growth.
- 3 Explain why Friedman believed stable monetary policy rules could be better than frequent discretionary policy changes by central banks.