Value of $100 in 1940, adjusted to 1973

What happened to prices between 1940 and 1973

Between 1940 and 1973, the Consumer Price Index went from 14 to 44.4. Cumulatively, prices increased 217.1%, which works out to an average of 3.56% per year. Put differently, a dollar in 1940 bought what $0.32 buys in 1973.

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: 1973

Consumer prices rose 6.2% in 1973, nearly double 1972’s 3.2%, as Nixon’s wage and price controls were phased out through the year and pressure the controls had been holding back broke loose. The bigger shock arrived that October, when Arab oil-producing states embargoed exports to the United States and other supporters of Israel in the Yom Kippur War. Crude oil, which had traded around $3 a barrel, approached $12 by early 1974, and gas lines became a fixture outside filling stations nationwide. Earlier in the year, the Paris Peace Accords, signed that January 27, ended direct American combat in Vietnam and set a 60-day deadline for withdrawing remaining U.S. troops, even as fighting between North and South Vietnam went on. Financial markets read the year correctly as a turning point: the Dow Jones Industrial Average peaked at 1,051.70 on January 11, a level it would not reach again until 1980, before the oil shock and rising interest rates dragged it into a two-year bear market. A median household earned $10,512 in 1973, a new home sold for a median $32,500, and gas averaged 38.5 cents a gallon, still under half of what the embargo’s effects would bring the following year. Consumer prices stood 348.5% above their 1913 level by year’s end, with the decade’s worst inflation still ahead.

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