Value of $100 in 1926, adjusted to 2009

What happened to prices between 1926 and 2009

Between 1926 and 2009, the Consumer Price Index went from 17.7 to 214.537. Cumulatively, prices increased 1112.1%, which works out to an average of 3.05% per year. Put differently, a dollar in 1926 bought what $0.08 buys in 2009.

Consumer prices rose 1.1% in 1926, a third straight year of mild inflation and part of the price stability that defined the middle of the decade. Florida’s real estate boom, which had peaked the previous year on speculative buying of undeveloped land, ended abruptly that September when the Great Miami Hurricane made landfall near the city, killing hundreds and wrecking the market for land whose value had rested on continued speculation rather than anything underneath it. In Detroit, Henry Ford moved his company to a five-day, 40-hour work week without cutting pay, a break from the standard six-day schedule that other large employers would gradually adopt over the following decades; Ford argued publicly that workers with more leisure time would also become better customers for the cars his factories built. Consumer prices remained low enough by historical standards that a first-class stamp still cost just 2 cents, the same price it had held since mid-1919.

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The destination year: 2009

2009 is the rarest kind of year in the modern price data: one where the cost of living went down. The CPI fell 0.4%, the first full-year deflation since 1955, as the Great Recession hollowed out demand and oil unwound from its $147 spike the summer before. Gasoline that had cost over $4 a gallon in July 2008 averaged $2.35 in 2009, and that energy collapse dragged the 12-month inflation rate to −2.1% by July, the deepest reading since 1950. Policymakers treated falling prices not as relief but as a warning: deflation raises the real weight of debt precisely when households are drowning in it, which is why the Federal Reserve pinned interest rates near zero, began buying bonds by the hundreds of billions, and Washington passed a $787 billion stimulus. The medicine took: prices stabilized within a year, and 2009 remains the textbook case of why central banks fear deflation more than moderate inflation.

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