Value of $100 in 1929, adjusted to 1948

What happened to prices between 1929 and 1948

Between 1929 and 1948, the Consumer Price Index went from 17.1 to 24.1. Cumulatively, prices increased 40.9%, which works out to an average of 1.82% per year. Put differently, a dollar in 1929 bought what $0.71 buys in 1948.

Consumer prices were unchanged in 1929, the CPI’s annual average flat for the second time in six years and a fitting close to a decade that began with wartime inflation and ended in rough price stability. By year’s end the index stood 14.5% below its 1920 peak and roughly 73% above its 1913 starting point, a reminder that even a “stable” decade left prices well above where they had started. The stability in the cost of living masked what was building in financial markets. The National Bureau of Economic Research dates the start of the Great Depression to that August, the month the business cycle peaked, months before most Americans noticed anything was wrong. The break came that October: panic selling hit Wall Street on Black Thursday, October 24, and returned even worse on Black Tuesday, October 29, when the Dow Jones Industrial Average fell about 12% in a single session. Billions of dollars in paper wealth disappeared within days, and the crash marked the start of a downturn that would pull consumer prices into their steepest sustained decline of the 20th century over the next four years. First-class postage was still 2 cents, a price that would hold until 1932.

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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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