Transcript Cowards and Heroes: Group Loyalty in the US Civil War

Cowards and Heroes:
Group Loyalty in the
U.S Civil War
Dora L. Costa
MIT and NBER
Matthew E. Kahn
Tufts
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Introduction
• The U.S Civil War was horrific
• Soldiers knew that:
• Probability of death from
disease and battle was high
(20%)
• Pay was low and irregular
• Punishment mechanisms were
weak
• Why didn’t everyone desert?
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What motivates
soldiers to be loyal to
this organization?
• Narrow self-interest cannot
explain why the desertion rate
was only 9%
• Alternative Explanations:
• Altruism for your fellow men
• Desire for their honor and
esteem
• Ideology
• Morale
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Empirical Contribution
• Use a unique data set of 31,850
Civil War Union soldiers to
model the propensity to be a
“coward” and a “hero” as a
function of:
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demographics
community characteristics
ideology
morale
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Cowardly and heroic
deeds
• Non-market interaction
• An important aspect of human
behavior that ECONLIT
suggests is under-researched
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The Paper Contributes to
Three Growing
Literatures
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Group Loyalty
Levitt and Venkatash 2000,
Berman 2000,
Luttmer 2001,
Poterba 1997,
Iannaccone 1992
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Production of Social
Capital
• Social Capital is the “Glue” that
keeps the army united
• Growing research on the micro
and macro determinants of
producing social capital
• Alesina and La Ferrara 2000,
• Glaeser, Laibson and Sacerdote
2000,
• Costa and Kahn 2001
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Empirical
Organizational Design
• What types of organizations
feature low levels of shirking?
• Outcome measures such as
turnover levels are higher in
more heterogenous divisions
based on observables such as
age, education, tenure, race and
sex (see Pfeffer)
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Demand and Supply of
Military Loyalty
• The military faces a tough
“agency problem”.
• It produces team output –
winning battles
• The military cannot observe its
workers’ effort in the smoke of
the battlefield.
• The “usual” solutions for
agency problems cannot be
utilized
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For the Military: Social
Capital can substitute for
monetary incentives
• If loyalty could be built within
the company this would
mitigate the agency problems
• Such loyalty cannot be
“purchased” it must be
produced “in-house”
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How Does Social
Capital help this
Organization Function?
• Self-enforcing peer-pressure,
fighting is done in public and
your actions are common
knowledge among your peers;
• Don’t lose face, self-esteem tied
to how your peer group views
you
• More social capital => more
group loyalty => less shirking
=> better chance for victory
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Will the Men Supply
Loyalty?
• Survival Instincts says “no”
• BUT: If they feel altruism for
their fellow men
• If they desire the respect of their
company
• If they believe in the cause
• If their side has been winning
recently
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Production Function
Framework
• Loyalty = f(social capital,
individual attributes, morale)
• Social capital =
g(community attributes)
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Empirical Design
• Hazard model of competing risks
(Weibull)
• Our Decision Tree
• Desertion measures “cowardice”
• Promotion measures “heroism”
• We examine “cowardice” and
“heroism” for men who fought
• We do not estimate a war
participation equation
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Robert Fogel’s Union
Army Sample
• Sample includes 31850 white
men who fought for the Union
• 303 infantry companies out of
331 randomly sampled and
within these companies a 100%
sample
• their wealth representative of
northern population
• % all northern men serving
ranged from 53 to 81% in 18391845 birth cohorts
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Company Formation
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Company = community
How were they formed?
local
potential for sorting on
unobserved skill?
• Why do we discount this?
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Advantages of our
Empirical Design
• Stakes are high
• easy for the researcher to
measure “shirking” relative to
the modern firm
• team members also observe
“shirking”
• 303 companies provide “crossvariation”
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Demographic and socioeconomic Determinants
Individual Characteristics;
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occupation
country of birth
age and height
total personal property wealth in
1860
• Literacy
• Marital status
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Community
Determinants
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company characteristics -birthplace fragmentation
occupation fragmentation
age heterogeneity of the
company
• Do you have a brother in your
company?
• Population of city enlisted in
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Ideological
Determinants
• Volunteer
• percent of your county of
enlistment who voted for
Lincoln
• Year mustered
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Morale Determinants
• Momentum variables – share of
battles won in the last year
• Share of company who died
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The Geography of
Cowardice and Heroism
• Table Two
• Each column’s entries sum to
100%
• Wide variation
• Wisconsin and Iowa are special
in terms of promotion
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Summary Statistics
• Table Three reports the means
of the explanatory variables for;
• The whole sample
• For “Cowards”
• For “Heroes”
• Means differ depending on
ultimate category
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We Estimate Separate
Hazard Models for
Desertion, Arrests,
AWOL, and Promotion
• We organize our findings by
major hypothesis
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Individual Attributes
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The Deserters are:
Younger
Illiterate
Poorer
Irish and British
Not German
Married
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Community Level
Variables
• Desertion probabilities are
higher in companies where:
• heterogeneity is higher as
measured by:
• birth place,
• occupational
• age
• if you are from a large city
• duration dependence parameter
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in the desertion hazard
Community Continued
• Unlike the desertion results, the
community variables do not
intuitively predict promotion to
officer (i.e heroism)
• Having a brother in your
company raises desertion
propensity but lowers AWOL
propensity
• Evidence of Contagion Effect
identified due to functional
form
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The “Dark Side” of
Social Capital
Hypothesis
• We find no evidence that in
more homogenous communities
that the men “collude” to
straggle in back
• Some evidence of favoritism if
the officer and the soldier have
similar attributes
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Ideology
• Desertion is Lower for:
• Men who enlist early (1861)
• Volunteers
• Men from Pro-Lincoln counties
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Morale
• Desertion falls when the
company death rate is lower
• When the Union is winning
battles
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Optimal Organizational
Design
• Table 8 allows us to show the
magnitude of our hazard
estimates
• If the army wanted to minimize
cowardice, Table 8 shows what
we predict it could achieve
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Conclusion
• A self-interested soldier would
have deserted, yet only a small
fraction did. Why didn’t more
soldiers desert?
• Social capital and fear of loss of
honor substituted for incentive
pay
• The same variables that predict
participation in the “modern”
social capital literature predict
participation in this historical
setting
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