“Milton Friedman”, in political shorthand, often functions as a synonym for free-market ideologue, a label attached to any argument for deregulation or lower taxes regardless of whether it resembles anything Friedman actually wrote.

That shorthand skips past a body of technical, empirically grounded economic research that shaped how central banks operate today, whatever one thinks of the politics later built on top of it.

Milton Friedman (1912-2006) was born in Brooklyn to Hungarian Jewish immigrants, trained at Rutgers, Chicago, and Columbia (PhD 1946), and spent most of his career at the University of Chicago, where he became the central figure of what came to be called the Chicago School of economics, alongside colleagues like George Stigler. His core technical contribution was monetarism: the argument, developed most fully in A Monetary History of the United States, 1867-1960 (with Anna Schwartz, 1963), that the money supply’s growth rate, not fiscal spending, is the primary driver of inflation and nominal economic activity over the long run. That book’s most consequential single claim reinterpreted the Great Depression not as evidence of capitalism’s inherent instability but as a policy failure: the Federal Reserve allowed the money supply to contract sharply between 1929 and 1933, turning a recession into a depression. Related work on the “permanent income hypothesis” (1957), arguing that consumption tracks expected long-run income rather than current income, contributed to his 1976 Nobel Memorial Prize in Economic Sciences.

Friedman’s technical work reached a mass audience through two books written for general readers. Capitalism and Freedom (1962) argued that economic freedom is a necessary condition for political freedom and proposed policies considered fringe at the time, school vouchers, a volunteer military, floating exchange rates, a negative income tax, several of which were later adopted in some form. Free to Choose (1980), co-written with his wife Rose Friedman and paired with a PBS television series of the same name, translated those arguments into the era’s most widely seen popular case for deregulation and limited government, and became closely associated with the policy turn of the Reagan and Thatcher governments in the 1980s.

Friedman’s public role extended beyond his own research. Alongside Stigler, he was central to the mid-20th-century Chicago School reading of Adam Smith that historians now call “Chicago Smith,” using Smith’s authority to lend historical depth to a policy program more accurately described as Smithian economics in its contested modern sense than as a restatement of Smith’s own arguments. That program is one of the central reference points for what critics and historians later labeled neoliberalism, a term Friedman himself rarely, if ever, applied to his own work.

Source: Friedman, Milton, and Schwartz, Anna J., A Monetary History of the United States, 1867-1960, Princeton University Press, 1963. Friedman, Milton, Capitalism and Freedom, University of Chicago Press, 1962. Friedman, Milton, A Theory of the Consumption Function, Princeton University Press, 1957.