Value of $100 in 1917, adjusted to 1947

What happened to prices between 1917 and 1947

Between 1917 and 1947, the Consumer Price Index went from 12.8 to 22.3. Cumulatively, prices increased 74.2%, which works out to an average of 1.87% per year. Put differently, a dollar in 1917 bought what $0.57 buys in 1947.

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: 1947

Consumer prices rose 14.4% in 1947, up from 1946’s 8.3% and the fastest annual increase since 1920, as the last of the wartime price controls disappeared and a year of strikes, wage catch-up, and lingering shortages hit consumers all at once. Congress answered the previous year’s strike wave that June, overriding President Truman’s veto to pass the Taft-Hartley Act, which banned secondary boycotts and the closed shop and let states adopt “right-to-work” laws curbing union power. American attention was also turning outward. In a June 5 speech at Harvard, Secretary of State George Marshall outlined a U.S.-funded plan to rebuild Western Europe’s economies, an effort that would become known as the Marshall Plan once Congress funded it the following year. The government reorganized itself for the confrontation with the Soviet Union that plan was partly designed to prevent: the National Security Act, signed July 26, created the Department of Defense, the Air Force as a separate service, the Central Intelligence Agency, and the National Security Council. Consumer prices stood 125.3% above their 1913 level and 30.4% above 1929’s pre-Depression peak, up from just 1.2% above it four years earlier. First-class postage held at 3 cents, and the minimum wage stayed at 40 cents an hour.

More about inflation in 1947 →