Value of $100 in 1916, adjusted to 1939

What happened to prices between 1916 and 1939

Between 1916 and 1939, the Consumer Price Index went from 10.9 to 13.9. Cumulatively, prices increased 27.5%, which works out to an average of 1.06% per year. Put differently, a dollar in 1916 bought what $0.78 buys in 1939.

1916 was when World War I first showed up clearly in American price tags. Consumer prices rose 7.9% for the year, easily the sharpest increase since the Bureau of Labor Statistics’ CPI history begins in 1913, as factories ran flat out to fill steel, munitions, and food orders from Britain and France. Railroad workers felt the squeeze from rising living costs enough to threaten a nationwide strike; Congress headed it off in September with the Adamson Act, which set an eight-hour standard workday for interstate rail employees, the first federal law of its kind covering private-sector hours. Washington was also preparing more directly for war: the National Defense Act, signed in June, expanded the Army and National Guard and funded new government-owned munitions plants, adding another source of demand to an economy already running hot. Woodrow Wilson won re-election in November largely on having kept the country out of the fighting so far, a promise that would not survive the following spring. A first-class stamp still cost 2 cents, one of the few prices that had not yet moved.

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The destination year: 1939

Consumer prices fell 1.4% in 1939, closing out a decade in which the CPI fell in six years and rose in four, leaving prices 18.7% below their 1929 level even after the mid-decade recovery. Measured against the start of the CPI’s modern record, prices still stood 40.4% above their 1913 level, a reminder that even a decade defined by deflation left the cost of living well above where it had been a generation earlier. The decade’s final months reset the economic picture entirely. Germany invaded Poland on September 1, and Britain and France declared war two days later; the United States stayed formally neutral under the Neutrality Acts, but Allied orders for war materiel began flowing to American factories almost immediately, a demand shock that would do more to end the Depression over the next few years than any peacetime relief program had managed. Domestic policy kept building on the New Deal’s framework, too: the federal minimum wage rose to 30 cents an hour that October, the second step in the schedule set by the 1938 Fair Labor Standards Act. Amid it all, the New York World’s Fair opened April 30 in Queens, themed “The World of Tomorrow” and drawing tens of millions of visitors with exhibits on television and other technologies promising a more prosperous decade than the one just ending. First-class postage held at 3 cents.

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