The impact of peacekeeping on post-deployment earnings for Swedish veterans

We study the effect of peacekeeping on post-deployment earnings for military veterans. Using Swedish administrative data, we follow a sample of more than 11,000 veterans who were deployed for the first time during the period 1993-2010 for up to nine years after returning home. To deal with selection bias, we use difference-in-differences propensity score matching based on a rich set of covariates, including measures of individual ability, health and pre-deployment labour market attachment. We find that, overall, veterans’ post-deployment earnings are largely unaffected by their service. Even though Swedish veterans in the studied period tend to outperform their birthcohort peers who did not serve, we show that this advantage in earnings disappears once we adjust for non-random selection into service