Why did France and Great Britain cooperate in Operation Enduring Freedom after September 11, 2001, and fail to achieve cooperation in Operation Iraqi Freedom in March 2003? Operational code analysis is used to test the threat-cooperation proposition that common perceptions of a security...

Draft lottery data combined with Danish longitudinal administrative records show that military service can reduce criminal activity for youth offenders who enter service at ages 19-22. For this group property crime is reduced for up to five years from the beginning of service, and the effect is...

This paper estimates the long-term health effects of Vietnam-Era military service using Australia's National conscription lotteries for identification. Our primary contribution is the quality and breadth of our health outcomes. We use several administrative sources, containing a near-universe of...

Military service is an important vehicle through which young Americans invest in their human capital. Using internal military data, we show that county-level exposure to U.S. combat casualties during the Iraq and Afghanistan wars decreased the supply of new soldiers in that county, and changed...

Having a military that is representative of the population is a stated social goal by policy makers. Since the armed forces do not gather data on the family income of recruits, studies on the socioeconomic background have relied on potentially biased geographic data, reaching conflicting...