It is commonly claimed that Franklin Roosevelt (FDR) did not end the Great Depression: World War II (WW2) did. This is supported by the 10.6 percent growth per year in real Gross Domestic Product (GDP) per capita seen in the standard GDP estimates from 1940 to 1945. It is also supported by the rapid decline in unemployment during the war.
However, no comparable growth spurts in GDP per
capita catch the eye in a plot of
log(GDP per capita) from 1790 to 2015,
whether associated with a war or not, using data
from Measuring Worth. The only other features
of that plot that seem visually comparable are
the economic disaster of Herbert Hoover's
presidency (when GDP per capital fell by 10
percent per year, 1929-1932), the impressive
growth of the US economy during the first seven
years of Franklin Roosevelt's presidency (6.4
percent per year, 1933-1940), and the post-World
War II recession (when GDP per capita fell by
7.9 percent per year, 1945-1947). (NOTE: The
web site for Measuring Worth,
https://measuringworth.com/ still works,
but has not always been maintained to current
internet security standards. Therefore, the
link is provided here in text but not as a link.)
Closer inspection of this plot suggests that the US economy has generally grown faster after FDR than before. This might plausibly be attributed to "The Keynesian Ascendancy 1939-1979".
Unemployment dropped during the First World War as it did during WW2. Comparable unemployment data are not available for the U.S. during other major wars, most notably the American Civil War and the Mexican-American War.
This data set provides a platform for testing
the effects of presidency, war, and Keynes. It
does this by combining the numbers for US
population and real GDP per capital dollars from
Measuring Worth with the presidency and a list
of major wars and an estimate of the battle
deaths by year per million population. (As
noted above, the web address for measuring worth,
https://measuringworth.com/, often gives
security warnings but still seems to provide the
data as before.)
data(USGDPpresidents)A data.frame containing 259
observations on the following variables:
integer: the year,
c(seq(1610, 1770, 10), 1774:2015)
Numeric: U. S. Consumer Price Index per Officer and Williamson (2015). Average 1982-84 = 100.
numeric: Implicit price deflators for Gross Domestic Product with 2012s = 100 per Johnston and Williamson.
integer: US population in thousands.
Population figures for 1610 to 1780 came from Springston (2013). The rest came from Johnston and Williamson. (The early population figures reflect only the European settlers in the British colonies that eventually became the US.)
numeric: real Gross Domestic Product per capita in 2012 dollars
ordered: Crown of England
through 1774, followed by the
"ContinentalCongress" and the
"ArticlesOfConfederation" until
Washington, who became President under the
current base constitution in 1789. Two
nineteenth century presidents are not
listed here (William Henry Harrison and
James A. Garfield), because they died so
soon after inauguration that any
contribution they made to the economic
growth of the nation might seem too slight
to measure accurately in annual data like
this; their contributions therefore
appear combined with their replacements
(John Tyler and Chester A. Arthur,
respectively). The service of two other
presidents is officially combined here:
"Taylor-Fillmore" refers to the 16 months
served by Zachary Taylor with the 32 months
of Millard Fillmore. These modifications
make
Barack Obama
number 41 on this list, even though he's
the 44th president of the U.S.
ordered: This lists the
major wars in US history by years
involving active hostilities. A war is
"major" for present purposes if it met
two criteria:
(1) It averaged at least 10 battle deaths per year per million US population.
(2) It was listed in one of two lists of wars: For wars since 1816, it must have appeared in the Correlates of War. For wars between 1790 and 1815, it must have appeared in the Wikipedia "List of wars involving the United States".
The resulting list includes a few adjustments to the list of wars that might come readily to mind for people moderately familiar with US history.
A traditional list might start with the American Revolution, the War of 1812, the Mexican-American war, the Civil War, the Spanish-American war, World Wars I and II, Korea, and Vietnam. In addition, the Northwest Indian War involved very roughly 30 battle deaths per year per million population 1785-1795. This compares with the roughly 100 battle deaths per year 1812-1815 for the War of 1812.
For present purposes, the Spanish-American War is combined with the lesser-known American-Philippine War: The latter involved 50 percent more battle deaths but over a longer period of time and arguably with less impact on the stature of the US as a growing world power. However, its magnitude suggest it might have impacted the US economy in a way roughly comparable to the Spanish-American war. The two are therefore listed here together as "Spanish-American-Philippine" war.
The Correlates of
War (COW) data include multiple US uses
of military force during the Vietnam War
era. It starts with "Vietnam Phase 1",
1961-65, with 506 battle deaths in the COW
data base. It includes the "Second
Laotian" war phases 1 and 2, plus
engagement with a "Communist Coalition"
and Khmer Rouge as well as actions in the
Dominican Republic and Guatemala. The
current data.frame includes
only "Vietnam", referring primarily to
COW's "Vietnam War, Phase 2", 1965-1973.
The associated battle deaths include
battle deaths from these other, lesser
concurrent conflicts.
The COW data currently ends in 2007. However, the post-2000 conflicts in Afghanistan and Iraq averaged less than 1,000 battle deaths per year or roughly 3 battle deaths per year per million population. This is below the threshold of 10 battle deaths per year per million population. This in turn suggests that any impact of those conflicts on the US economy might be small and difficult to estimate.
numeric: Numbers of battle deaths by year estimated by allocating to the different years the totals reported for each major war in proportion to the number of days officially in conflict each year. The totals were obtained (in August-September 2015) from The Correlates of War data for conflicts since 1816 and from Wikipedia for previous wars, as noted above.
numeric: battle deaths per million
population =
1000*battleDeaths/population.K.
integer taking the value 1 between 1939 and 1979 and 0 otherwise, as suggested by the section entitled "The Keynesian Ascendancy 1939-1979" in the Wikipedia article on John Maynard Keynes.
Estimated US unemployment rate
ordered giving the source for
US unemployment:
Lebergott
Romer
Coen
BLS
Clearly, the more recent numbers should be more accurate.
rownames(USGDPpresidents) = Year
# NOT RUN {
##
## GDP, Presidents and Wars
##
data(USGDPpresidents)
(wars <- levels(USGDPpresidents$war))
nWars <- length(wars)
plot(realGDPperCapita/1000~Year,
USGDPpresidents, log='y', type='l',
ylab='average annual income (K$)',
las=1)
abline(v=c(1929, 1933, 1945), lty='dashed')
text(1930, 2.5, "Hoover", srt=90, cex=0.9)
text(1939.5, 30, 'FDR', srt=90, cex=1.1, col='blue')
# label wars
(logGDPrange <- log(range(USGDPpresidents$realGDPperCapita,
na.rm=TRUE)/1000))
(yrRange <- range(USGDPpresidents$Year))
(yrMid <- mean(yrRange))
for(i in 2:nWars){
w <- wars[i]
sel <- (USGDPpresidents$war==w)
yrs <- range(USGDPpresidents$Year[sel])
abline(v=yrs, lty='dotted', col='grey')
yr. <- mean(yrs)
w.adj <- (0.5 - 0.6*(yr.-yrMid)/diff(yrRange))
logy <- (logGDPrange[1]+w.adj*diff(logGDPrange))
y. <- exp(logy)
text(yr., y., w, srt=90, col='red', cex=0.5)
}
##
## CPI v. GDPdeflator
##
plot(GDPdeflator~CPI, USGDPpresidents, type='l',
log='xy')
##
## Unemployment
##
plot(unemployment~Year, USGDPpresidents, type='l')
# }
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