Value of $100 in 1914, adjusted to 1918

What happened to prices between 1914 and 1918

Between 1914 and 1918, the Consumer Price Index went from 10 to 15.1. Cumulatively, prices increased 51.0%, which works out to an average of 10.85% per year. Put differently, a dollar in 1914 bought what $0.66 buys in 1918.

Consumer prices barely moved in 1914, rising just 1.0% for the year, even as the country’s financial plumbing was rebuilt from the ground up. The Federal Reserve Banks, created by the Federal Reserve Act signed the previous December, opened their doors on November 16, giving the U.S. a central bank for the first time since the 1830s. Weeks earlier, the outbreak of war in Europe had spooked the New York Stock Exchange into closing for more than four months, the longest shutdown in its history, as officials worried European investors would dump American securities for gold. Domestically, the bigger story was labor: Henry Ford’s decision to pay factory workers $5 a day, announced in January, roughly doubled wages on his assembly lines and pushed other manufacturers to raise pay just to keep workers from leaving. A first-class stamp still cost 2 cents, a price that had held since 1885 and would keep holding for three more years, even as the war reshaping Europe began pulling the American economy toward the sustained wartime inflation of 1917.

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The destination year: 1918

1918 brought the steepest annual price increase the CPI had recorded: consumer prices rose 18.0% for the year, edging out 1917’s already sharp 17.4% as the economy stayed at full wartime mobilization for most of the year. A first-class stamp cost 3 cents, up from 2 cents the previous November under the War Revenue Act’s wartime tax increases. The war itself ended on November 11, when Germany signed an armistice with the Allied powers after more than four years of fighting in Europe, but the inflation built up over a year and a half of mobilization did not disappear along with the fighting. The bigger public health story that year was the influenza pandemic that reached the U.S. in a mild spring wave and then returned that fall in a far deadlier form, eventually killing roughly 675,000 Americans, more than the country’s combat losses in the war. It hit factories, docks, and shops alongside households, adding disruption to an economy already strained by wartime demand. Prices would keep climbing even after the armistice, into the postwar surge of 1919.

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