Value of $100 in 1917, adjusted to 1968

What happened to prices between 1917 and 1968

Between 1917 and 1968, the Consumer Price Index went from 12.8 to 34.8. Cumulatively, prices increased 171.9%, which works out to an average of 1.98% per year. Put differently, a dollar in 1917 bought what $0.37 buys in 1968.

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: 1968

Consumer prices rose 4.2% in 1968, up sharply from 1967’s 3.1% and the fastest pace in 17 years, as Vietnam War spending and a tight labor market pushed inflation higher despite the Federal Reserve’s earlier tightening. The year was marked by political violence: Martin Luther King Jr. was assassinated on a motel balcony in Memphis on April 4, touching off rioting in more than 100 cities, and Robert F. Kennedy was shot in Los Angeles on June 5, moments after winning California’s Democratic presidential primary, and died the next day. Washington tried to answer the inflation problem directly that June 28, when Congress passed a 10% income tax surcharge, the Revenue and Expenditure Control Act, temporarily raising taxes and cutting spending to cool an economy overheated by war and Great Society outlays; prices kept accelerating anyway. The cost of living rose in smaller, more visible ways too: first-class postage climbed to 6 cents that January 7, and the minimum wage rose to $1.60 an hour that February 1, the final step of the increase Congress had set two years earlier. Consumer prices finished 1968 251.5% above their 1913 level.

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