Value of $100 in 1940, adjusted to 1974

What happened to prices between 1940 and 1974

Between 1940 and 1974, the Consumer Price Index went from 14 to 49.3. Cumulatively, prices increased 252.1%, which works out to an average of 3.77% per year. Put differently, a dollar in 1940 bought what $0.28 buys in 1974.

Consumer prices rose 0.7% in 1940, snapping 1939’s decline and marking the first increase since 1937. The gain was modest, and the CPI still stood 18.1% below its 1929 peak, a reminder of how far the recovery from the Depression’s trough had left to go even as defense orders from Britain and France began reaching American factories. War was already reshaping domestic policy well before it touched American soil. Congress passed the Selective Training and Service Act that September, the country’s first peacetime draft, requiring men aged 21 to 35 to register and authorizing the induction of up to 900,000 men a year, more than a year before Pearl Harbor. That November, Franklin Roosevelt won an unprecedented third term, defeating Republican Wendell Willkie after campaigning on keeping the United States out of the war then consuming Europe and Asia. The promise would not hold much longer: within two years, wartime demand would push consumer prices up faster than at any point since the aftermath of World War I. First-class postage held at 3 cents, and the federal minimum wage stayed at 30 cents an hour, the level set the previous October under the Fair Labor Standards Act.

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The destination year: 1974

1974 was the year the postwar economy broke its old rules. Consumer prices rose 11.0%, the fastest annual increase since 1947, as the Arab oil embargo that ran from October 1973 to March 1974 roughly quadrupled the price of crude oil worldwide. Gasoline, which had averaged 38.5 cents a gallon in 1973, jumped to 53.2 cents, and shortages forced many states into odd-even rationing at the pump. Nixon’s wage and price controls, in place in some form since 1971, expired at the end of April, removing the last brake on prices just as the oil shock hit. Nixon himself resigned in August over Watergate, and Gerald Ford’s response to inflation, a voluntary “Whip Inflation Now” campaign built around lapel buttons, became a symbol of how little conventional politics could do against the problem. Prices kept climbing even as the economy weakened: a recession that started in November 1973 dragged on, the Dow fell to a bear-market bottom of 577.60 in December, and unemployment was already rising toward the 9% it would reach in 1975. The combination of rising prices and a shrinking economy gave the decade its name: stagflation.

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