Value of $100 in 1918, adjusted to 1936

What happened to prices between 1918 and 1936

Between 1918 and 1936, the Consumer Price Index went from 15.1 to 13.9. Cumulatively, prices declined 7.9%, which works out to an average of -0.46% per year. Put differently, a dollar in 1918 bought what $1.09 buys in 1936.

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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The destination year: 1936

Consumer prices rose 1.5% in 1936, a third straight annual increase and part of a slow, steady climb back from the 1933 trough, though prices and the broader economy still had not fully recovered to their pre-Depression levels. Voters delivered their verdict on that recovery in November, reelecting Franklin D. Roosevelt over Republican Alf Landon in one of the most lopsided elections in U.S. history: Roosevelt carried 46 of 48 states and won the Electoral College 523 to 8, a broad public endorsement of the New Deal. Public works kept advancing that year, too. Hoover Dam, one of the era’s signature projects, had been dedicated in September 1935, but its first generators did not begin sending electricity over transmission lines to Los Angeles until October 1936, a milestone that showed how long even a celebrated project took to reach full operation. Consumer prices ended the year 40.4% above their 1913 level, still 18.7% below the 1929 peak, a gap that would keep narrowing until a sharp new recession interrupted the recovery the following year. First-class postage held at 3 cents.

More about inflation in 1936 →