Value of $100 in 1913, adjusted to 1921

What happened to prices between 1913 and 1921

Between 1913 and 1921, the Consumer Price Index went from 9.9 to 17.9. Cumulatively, prices increased 80.8%, which works out to an average of 7.68% per year. Put differently, a dollar in 1913 bought what $0.55 buys in 1921.

1913 is where this site’s price history begins, because it’s where the Bureau of Labor Statistics’ own consumer price data begins. The CPI wasn’t published in real time back then; the BLS built the earliest index retroactively from retail price records collected starting in 1913, which makes every dollar figure on this site ultimately anchored to that year’s prices. It was also the year the machinery of modern federal economic policy was built. The 16th Amendment, ratified in February, cleared the constitutional path for a federal income tax, and the Revenue Act that followed in October imposed a top rate of just 7% on income above $500,000, a narrow tax that would later be reshaped into the broad-based system that funds the government today. In December, Congress passed the Federal Reserve Act, creating the central bank that would eventually take on fighting inflation as one of its core jobs, including the 19%-plus interest rates it deployed against the 1970s and early 1980s price surge. Consumer life in 1913 was correspondingly simple by later standards: a first-class stamp cost 2 cents, a price that held from 1885 all the way to 1917, and the Ford Motor Company introduced the moving assembly line at its Highland Park plant that year, a manufacturing breakthrough that would spend the next decade driving down the cost of a car faster than prices elsewhere were rising.

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The destination year: 1921

Consumer prices fell 10.5% in 1921, the mirror image of the wartime inflation that had more than doubled the cost of living between 1913 and 1920. The Depression of 1920-21, one of the sharpest contractions in U.S. history, bottomed out that July according to the National Bureau of Economic Research, even though it had lasted barely eighteen months. Unemployment climbed toward one worker in ten as businesses cut production and prices to work through wartime inventories, but the same collapse in prices also meant the recovery, once it started, had room to run without reigniting inflation. Warren Harding took office March 4, promising a return to “normalcy” after a decade of war, pandemic, labor unrest, and rapid price swings; his administration moved quickly to cut top income tax rates and federal spending. Congress also acted on immigration that year: the Emergency Quota Act, signed May 19, capped annual arrivals from each country at 3% of that nationality’s population in the 1910 census, the first time the United States had set a numerical ceiling on immigration. The law favored northern and western Europe and cut total immigration by more than half compared with prewar levels; Congress tightened the formula again in 1924. First-class postage held at 2 cents, unchanged since mid-1919.

More about inflation in 1921 →