Between 1920 and 1935, the Consumer Price Index went from 20 to 13.7.
Cumulatively, prices declined 31.5%, which works out to an average of
-2.49% per year. Put differently, a dollar in 1920 bought what
$1.46 buys in 1935.
1920 was the last year of the inflation that had built since the war began:
consumer prices rose 15.6% for the year, leaving the CPI more than double its
1913 starting level after seven straight years of increases.
The boom behind those increases turned to bust before the year was over. The
Federal Reserve, worried about speculation, pushed its discount rate to a
record 7% that spring, and wholesale prices, which had led the wartime
runup, began collapsing within months. The National Bureau of Economic
Research dates the resulting downturn from January 1920 to July 1921, one of
the shortest but steepest contractions in U.S. history, and consumer prices
followed into outright decline, falling 10.5% in 1921. Two constitutional
changes reshaped the country that year, too. The 18th Amendment’s ban on
alcohol took legal effect January 17, enforced under the Volstead Act
Congress had passed the previous October. Then, on August 18, Tennessee’s
ratification of the 19th Amendment secured women’s right to vote nationwide,
and women cast ballots in a presidential election for the first time that
November, when Warren Harding won on a promise to return the country to
“normalcy” after a decade of war, pandemic, and rising prices. First-class
postage held at 2 cents, unchanged since mid-1919.
The headline number is an average. Individual categories moved very differently over this
period. Here is what $100 of 1920 spending costs in 1935, by category:
Category
Avg. yearly inflation
$100 in 1920 →
All items (CPI-U)
-2.49%
$68.50
Food
-3.45%
$59.05
Apparel
-4.74%
$48.26
Not shown because the BLS began these indexes after 1920: core (all items less food & energy) (1957–), energy (1957–), housing (1967–), medical care (1935–), transportation (1935–), recreation (1993–), education & communication (1993–).
Consumer prices rose 2.2% in 1935, a second straight annual increase after
1934’s turnaround, though the CPI still sat well below its
1929 peak and the recovery remained uneven and incomplete.
The year’s biggest legislative achievements aimed at making that unevenness
less punishing. Roosevelt signed the Social Security Act on August 14,
creating federal old-age pensions and unemployment insurance funded by a new
payroll tax, the first federal safety net of its kind in U.S. history. That
spring, the Works Progress Administration had already begun putting millions
of unemployed Americans to work on public construction, arts, and
infrastructure projects, becoming the largest jobs program of the New Deal.
Congress added labor protections to the mix that July with the National
Labor Relations Act, guaranteeing most private-sector workers the right to
organize and bargain collectively. The human cost of the Dust Bowl was still
mounting on the Plains: the storm known as Black Sunday hit on April 14,
one of the worst of the decade, and continued drought kept driving farm
families off land that could no longer support them. Consumer prices ended
the year 38.4% above their 1913 level. First-class postage
held at 3 cents.
MLA: “Inflation from 1920 to 1935: $100 is worth $68.50 today.” InflationCalculator.com, U.S. Bureau of Labor Statistics CPI-U data, https://inflationcalculator.com/inflation/1920-to-1935/
APA: InflationCalculator.com. Inflation from 1920 to 1935. Based on U.S. Bureau of Labor Statistics CPI-U data. Retrieved from https://inflationcalculator.com/inflation/1920-to-1935/