Military Service and Immigrants’ Integration: Evidence From the Vietnam Draft Lotteries

Nan Zhang and Melissa M. Lee

Working Papers from U.S. Census Bureau, Center for Economic Studies

Abstract: Seminal theories in political science argue that military service is a critical driver of minority integration. However, a major obstacle bedeviling the study of military service is self-selection: individuals who are better integrated may be more likely to join the military in the first place. We address the selection problem by examining the effects of military conscription during the Vietnam War using an instrumental variables approach. Conscription during 1970--72 was decided on the basis of national draft lotteries that assigned draft numbers based on an individual's date of birth. Using the draft lottery instrument, we find no evidence of a causal effect of military service on a range of integration outcomes from the 2000 decennial census. At least for the Vietnam era, the link between service and long-term integration is largely driven by self-selection, which points to important scope conditions for the integrationist view.

Date: 2026-06
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https://www2.census.gov/library/working-papers/2026/adrm/ces/CES-WP-26-35.pdf First version, 2026 (application/pdf)

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Persistent link: https://EconPapers.repec.org/RePEc:cen:wpaper:26-35

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