Value of $100 in 1913, adjusted to 1931

What happened to prices between 1913 and 1931

Between 1913 and 1931, the Consumer Price Index went from 9.9 to 15.2. Cumulatively, prices increased 53.5%, which works out to an average of 2.41% per year. Put differently, a dollar in 1913 bought what $0.65 buys in 1931.

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: 1931

Consumer prices fell 9.0% in 1931, a sharp acceleration from the 2.3% decline in 1930, as falling wages, collapsing farm prices, and a fresh wave of bank failures fed a downward spiral that the still-contracting economy could not shake. More than 2,000 banks failed during the year, far more than in 1930, as depositors who had watched earlier banks go under pulled their cash out of ones they feared were next. The crisis went international that September, when Britain suspended the gold standard amid a run on sterling. The Federal Reserve’s response made the domestic downturn worse before it made anything better: to defend the dollar’s own gold backing, the Fed raised its discount rate sharply that October, in two steps from 1.5% to 3.5%, tightening credit at the exact moment the economy needed the opposite. Not every headline that year was grim. The Empire State Building opened its doors on May 1, briefly the tallest building in the world, though so much of Manhattan’s office space sat vacant amid the Depression that tenants stayed scarce and New Yorkers took to calling it the “Empty State Building.” Consumer prices had now fallen for two straight years and stood 53.5% above their 1913 level, down from the 68.7% margin of just twelve months before. First-class postage remained at 2 cents.

More about inflation in 1931 →