Value of $100 in 1917, adjusted to 1971

What happened to prices between 1917 and 1971

Between 1917 and 1971, the Consumer Price Index went from 12.8 to 40.5. Cumulatively, prices increased 216.4%, which works out to an average of 2.16% per year. Put differently, a dollar in 1917 bought what $0.32 buys in 1971.

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: 1971

Consumer prices rose 4.4% in 1971, down from 1970’s 5.7% as the recession that started in December 1969 finally cooled demand. The bigger economic story came that August 15, when President Nixon closed the “gold window” that let foreign governments exchange dollars for gold, ending the Bretton Woods system that had anchored the dollar since World War II. The same address announced a 90-day freeze on wages and prices, the first peacetime controls the country had seen, an attempt to break inflationary expectations without the slower grind of tighter money. The “Nixon Shock,” as it came to be known, let the dollar float against other currencies for the first time and set the stage for a wage-and-price-control regime that would run in various forms into 1973. Politically, the country lowered its voting age that year: the 26th Amendment, ratified July 1, extended the vote to 18-year-olds, capping a campaign built on the argument that men old enough to be drafted to Vietnam were old enough to vote for the people who sent them. The Postal Service, independent since 1970’s reorganization, raised first-class postage from 6 to 8 cents that May. A median household earned $9,028 in 1971, up from $8,734 the year before, while gas held near 36 cents a gallon and a new home sold for a median $25,200. Consumer prices stood 309.1% above their 1913 level by year’s end, still years away from the double-digit inflation the controls were meant to prevent.

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