RT Journal Article SR Electronic T1 Brothers in Arms: Spillovers from a Draft Lottery JF Journal of Human Resources JO J Hum Resour FD University of Wisconsin Press SP 0317-8646R3 DO 10.3368/jhr.56.1.0317-8646R3 A1 Paul Bingley A1 Petter Lundborg A1 Stéphanie Vincent Lyk-Jensen YR 2019 UL http://jhr.uwpress.org/content/early/2019/08/02/jhr.56.1.0317-8646R3.abstract AB While family members tend to have similar labor market outcomes, 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 by discouraging any refusal to serve.