Value of $100 in 1945, adjusted to 2009

What happened to prices between 1945 and 2009

Between 1945 and 2009, the Consumer Price Index went from 18 to 214.537. Cumulatively, prices increased 1091.9%, which works out to an average of 3.95% per year. Put differently, a dollar in 1945 bought what $0.08 buys in 2009.

Consumer prices rose 2.3% in 1945, up from 1944’s 1.7% but still modest, a rate that understated how much pressure had built up behind wartime price and wage controls, which stayed largely in place even as the conflict that justified them came to a close. The year opened with a shock at home: Franklin Roosevelt died of a cerebral hemorrhage on April 12, less than three months into an unprecedented fourth term, and Vice President Harry Truman was sworn in that same afternoon. The war Roosevelt had led for nearly four years ended without him. Germany surrendered on May 8, and Japan surrendered on August 15, after atomic bombs fell on Hiroshima and Nagasaki that month, with the formal signing aboard the USS Missouri on September 2. Domestic policy kept moving even as the guns fell silent: the federal minimum wage rose to 40 cents an hour that October 24, the final step of the schedule Congress had built into the 1938 Fair Labor Standards Act, up from 30 cents in 1939 and 25 cents at the law’s start. Consumer prices stood 81.8% above their 1913 level, a gain that would look modest next to what followed once wartime controls actually came off. First-class postage held at 3 cents.

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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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