Angrist, Joshua D.; Chen, Stacey H.; Song, Jae - In: American Economic Review 101 (2011) 3, pp. 334-38
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 also use SSA data to construct IV estimates for employment (as measured by an indicator for positive earnings)...
