Value of $100 in 1924, adjusted to 2009

What happened to prices between 1924 and 2009

Between 1924 and 2009, the Consumer Price Index went from 17.1 to 214.537. Cumulatively, prices increased 1154.6%, which works out to an average of 3.02% per year. Put differently, a dollar in 1924 bought what $0.08 buys in 2009.

Consumer prices held flat in 1924, the CPI’s annual average unchanged from 1923 after swinging from a sharp postwar drop to a modest rise the year before. That stability, extending the calm that had settled in after the deflation of 1921 and 1922, became a defining feature of the rest of the decade. Congress tightened immigration policy further with the Immigration Act of 1924, signed May 26, which cut the national-origins quota from 3% of each nationality’s 1910 census population to 2% of its 1890 population, shifting admissions further toward northern and western Europe and effectively excluding most immigration from Asia. Abroad, the U.S.-backed Dawes Plan, adopted that August, reorganized Germany’s war reparations payments and opened the way for American loans into the German economy, helping stabilize European currencies after the hyperinflation that had peaked in 1923. At home, Calvin Coolidge, who had served out the remainder of Warren Harding’s term after his death the previous year, won a full term of his own that November, campaigning on continued prosperity and limited government. First-class postage remained at 2 cents, a price unchanged 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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