Between 1930 and 1938, the Consumer Price Index went from 16.7 to 14.1.
Cumulatively, prices declined 15.6%, which works out to an average of
-2.09% per year. Put differently, a dollar in 1930 bought what
$1.18 buys in 1938.
Consumer prices fell 2.3% in 1930, a mild decline compared with what was
coming but the first sign that the summer 1929 downturn was not going to be
short. The National Bureau of Economic Research dates that contraction from
August 1929, and by the time it finally bottomed out in March 1933 it would
run 43 months, the longest of any downturn in the NBER’s chronology back to
1854. Congress made the trade picture worse in June, when President Hoover
signed the Smoot-Hawley Tariff Act, raising duties on more than 20,000
imported goods to some of the highest levels in a century. Trading partners
retaliated with tariffs of their own, and global trade volumes collapsed
over the next several years, deepening a downturn economists still debate
how much the tariff itself worsened. The financial system cracked that fall:
a regional banking panic culminated in the December 11 failure of the Bank
of United States in New York, at the time the largest bank failure in
American history, wiping out more than $200 million in deposits. It was the
first of four banking panics that would hit the country before 1933 was
out. Consumer prices still stood 68.7% above their 1913
starting point, but the direction had clearly turned. First-class postage
held at 2 cents, unchanged for eleven straight years.
The headline number is an average. Individual categories moved very differently over this
period. Here is what $100 of 1930 spending costs in 1938, by category:
Category
Avg. yearly inflation
$100 in 1930 →
All items (CPI-U)
-2.09%
$84.43
Apparel
-1.24%
$90.50
Food
-3.13%
$77.56
Not shown because the BLS began these indexes after 1930: core (all items less food & energy) (1957–), energy (1957–), housing (1967–), medical care (1935–), transportation (1935–), recreation (1993–), education & communication (1993–).
Consumer prices fell 2.1% in 1938, reversing most of 1937’s
gain and interrupting four straight years of recovery from the Depression’s
trough. The National Bureau of Economic Research dates the bottom of the
downturn, which had begun that May, to June 1938, a sharp 13-month
contraction that briefly pushed unemployment back up near 19%. Even in a
year the economy was shrinking again, Congress passed one of the New Deal’s
most lasting reforms. The Fair Labor Standards Act, signed June 25 and
effective that October, established the first federal minimum wage, 25
cents an hour, capped the standard workweek at 44 hours with time-and-a-half
overtime beyond it, and restricted the employment of children in most
industries. The wage floor and hours limits applied only to workers engaged
in interstate commerce at first, but they set a precedent that would expand
in the decades that followed. Consumer prices stood 42.4% above their
1913 level and 17.5% below their 1929 peak, evidence of how
far the recovery still had to go even eight years after the Depression
began. First-class postage held at 3 cents.
MLA: “Inflation from 1930 to 1938: $100 is worth $84.43 today.” InflationCalculator.com, U.S. Bureau of Labor Statistics CPI-U data, https://inflationcalculator.com/inflation/1930-to-1938/
APA: InflationCalculator.com. Inflation from 1930 to 1938. Based on U.S. Bureau of Labor Statistics CPI-U data. Retrieved from https://inflationcalculator.com/inflation/1930-to-1938/