Family members tend to have similar labor market outcomes, but measuring the
contribution of behavioral spillovers is difficult. To identify spillovers between brothers, we exploit Denmark’s largest random assignment – of young men to 8 months of military service – where service status of brothers is correlated but draft lottery numbers are not. We find average spillovers of elder brother service on younger brother service of 7 percent, and as high as 55 percent for closely spaced brothers without sisters. Elder brother military service affects his own occupational choice and his younger brother’s service through private information, thereby encouraging volunteering.
contribution of behavioral spillovers is difficult. To identify spillovers between brothers, we exploit Denmark’s largest random assignment – of young men to 8 months of military service – where service status of brothers is correlated but draft lottery numbers are not. We find average spillovers of elder brother service on younger brother service of 7 percent, and as high as 55 percent for closely spaced brothers without sisters. Elder brother military service affects his own occupational choice and his younger brother’s service through private information, thereby encouraging volunteering.
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IZA. Institute for the Study of Labor / Forschungsinstitut zur Zukunft der Arbeit
