Value of $100 in 1917, adjusted to 1965

What happened to prices between 1917 and 1965

Between 1917 and 1965, the Consumer Price Index went from 12.8 to 31.5. Cumulatively, prices increased 146.1%, which works out to an average of 1.89% per year. Put differently, a dollar in 1917 bought what $0.41 buys in 1965.

1917 is when World War I inflation stopped being a background trend and became the dominant fact of American economic life. Consumer prices rose 17.4% for the year, more than double the previous year’s already sharp increase, as the country’s April 6 entry into the war layered federal war spending on top of an economy already strained by military demand and worker shortages. Congress paid for the war with the War Revenue Act that October, which sharply raised income taxes, created a new tax on wartime business profits, and, in a small but very visible change for ordinary households, raised the cost of a first-class stamp from 2 cents to 3 cents that November, the rate’s first move since 1885. Herbert Hoover took over the new Food Administration in August and asked Americans to conserve food voluntarily rather than face formal rationing, a campaign that became famous enough that “Hooverize” entered the language as a verb for cutting back. None of it slowed prices much: the 17.4% increase would be topped again the very next year, in 1918.

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The destination year: 1965

Consumer prices rose 1.6% in 1965, up from 1964’s 1.3% in a pickup that economists later mark as the start of the Great Inflation, a run of accelerating price increases driven by rising Vietnam War spending layered on top of new Great Society programs. The war itself escalated on the ground that March, when about 3,500 Marines came ashore at Da Nang, the first American combat troops committed to Vietnam; troop levels would climb toward 200,000 by year’s end. Domestic policy expanded just as fast: Medicare and Medicaid became law that July 30, creating federal health insurance for older and low-income Americans, and the Voting Rights Act, signed that August 6, banned literacy tests and other devices used to disenfranchise Black voters. The civil rights movement’s gains coexisted with urban unrest that same August, when a highway patrol traffic stop in the Watts neighborhood of Los Angeles set off six days of rioting that left 34 people dead. Consumer prices finished 1965 218.2% above their 1913 level. First-class postage held at 5 cents, and the minimum wage stayed at $1.25 an hour.

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