Value of $100 in 1915, adjusted to 1948

What happened to prices between 1915 and 1948

Between 1915 and 1948, the Consumer Price Index went from 10.1 to 24.1. Cumulatively, prices increased 138.6%, which works out to an average of 2.67% per year. Put differently, a dollar in 1915 bought what $0.42 buys in 1948.

Consumer prices rose 1.0% in 1915, the second straight year of near-flat inflation before the wartime price surges of 1916 through 1918. The year’s defining event had nothing to do with prices directly: a German submarine sank the British liner Lusitania off the Irish coast on May 7, killing 128 Americans and hardening U.S. opinion against Germany two years before the country entered the war. Economically, 1915 was a turning point of a different kind. A recession that had dragged on since 1913 began lifting as Britain and France placed growing orders for steel, munitions, and other war materiel with American manufacturers, and U.S. exports to the Allied powers climbed sharply through the year. That demand would keep building through 1916, eventually pulling prices up with it. On the regulatory side, the Federal Trade Commission opened for business in March, taking on enforcement of the Clayton Antitrust Act that Congress had passed the previous fall. A first-class stamp still cost 2 cents, unchanged since 1885 and still two years from its first wartime increase.

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The destination year: 1948

Consumer prices rose 8.1% in 1948, down slightly from 1947’s 14.4% but still the second straight year of sharp postwar inflation now that wartime price controls were fully gone. Congress moved to stabilize a different economy that April, passing the Economic Cooperation Act to fund the plan Secretary of State George Marshall had proposed the year before: more than $13 billion over four years to rebuild Western Europe and counter Soviet influence. The Cold War turned tense closer to the plan’s target that June, when Soviet forces cut off road and rail access to the Western-controlled sectors of Berlin. American and British aircraft responded almost immediately with an airlift of food, fuel, and supplies that would keep the city running for nearly a year. Domestic politics produced its own upset that November: nearly every poll and pundit had predicted a Republican win, but Harry Truman defeated New York Governor Thomas Dewey, handing the Chicago Tribune its famously wrong “Dewey Defeats Truman” headline. Consumer prices finished the year 143.4% above their 1913 level and 40.9% above 1929’s pre-Depression peak. First-class postage held at 3 cents, and the minimum wage stayed at 40 cents an hour.

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