The wars in Iraq and Afghanistan have produced historically low rates of fatalities, injuries,
and posttraumatic stress disorder (PTSD) among US combatants. Yet they have also …

This overview develops new empirical models that can effectively document Gene×
Environment (G× E) interactions in observational data. Current G× E studies are often …

We exploit plausibly exogenous variation in overseas deployment assignment to estimate
the effect of combat exposure on psychological well-being. Controlling for pre-deployment …

Draft-lottery estimates of the causal effects of Vietnam-era military service using 2000
census data show marked schooling gains for veterans. We argue that these gains can be …

工具变量(instrumental variable) 是社会科学定量分析中解决内生性问题的重要手段,
是基于调查数据进行因果推断的前沿方法. 本文在简要介绍工具变量的定义 …

We exploit exogenous variation in years of completed college induced by draft-avoidance
behavior during the Vietnam War to examine the impact of college on adult mortality. Our …

Combining administrative data from the US Army, Department of Veterans Affairs, and Social
Security Administration, we analyze the effect of the VA's Disability Compensation (DC) …

The disturbing connection between well-meaning physicians and the prescription drug
epidemic. Three out of four people addicted to heroin probably started on a prescription …

We use the draft lottery to construct instrumental variables (IV) estimates of the impact of
Vietnam-era military service on veterans' Social Security (SSA) earnings through 2007. We …

This study is the first to estimate the effect of war service in the Global War on Terrorism on
domestic violence. We exploit a natural experiment in overseas deployment assignment …