Peacetime military service has both positive and negative effects on human capital. While it depreciates academic skills, it also enhances non-cognitive ones. The net effect of conscription is hard to identify due to issues of self-selection, endogenous timing and omitted variables bias. We exploit the compulsory service of men in the Republic of Cyprus preceding university enrolment to deal with the first two problems. After controlling for prior academic performance and other relevant controls in a selection on observables model, we find that duration of service has a positive and significant effect on men's subsequent academic performance as measured by grade point average. Two exogenous reforms-one at the extensive margin and one at the intensive margin of military service-allow us to deal with omitted variables bias. We estimate difference-in-differences models, where female students act as a control group, and show that an increase (reduction) in the average length of army service has a positive (negative) and significant effect on men's academic performance.
Supplementary information: The online version contains supplementary material available at 10.1007/s00148-023-00944-2.
Understanding the causal relationship between vaccination and individuals' risky behavioral responses has important policy implications as it affects the ultimate effectiveness of increasing access to vaccination. This paper examines the causal effects of vaccination on risky behaviors by exploring the 1992 hepatitis B vaccination campaign in China. Our empirical strategy exploits variations in age at the campaign as well as the pretreatment infection risks across provinces. Using a large cross-section of individuals born between 1981 and 1994, we find that more exposure to the hepatitis B vaccination leads to lower alcohol use during adulthood, and such impacts are almost entirely driven by men. Individuals from more educated families and people who live in urban areas tend to react more. Improved educational attainment and dissemination of related knowledge are important contributors. Our results uncover an unexpected benefit of promoting access to vaccination.
Supplementary information: The online version contains supplementary material available at 10.1007/s00148-023-00942-4.

