Parental Response to Early Human Capital Shocks : Evidence from the Chernobyl Accident

Halla, Martin GND; Zweimüller, Martina GND

Little is known about the response behavior of parents whose children are ex-posed to an early-life shock. We interpret the prenatal exposure of the Austrian 1986 cohort to radioactive fallout from the Chernobyl accident as a negative hu-man capital shock and examine their parents' response behavior. To identify causal effects, we can rely on exogenous variation in the exposure to radioactive fallout (over time and) between communities due to geographic differences in precipitation at the time of the accident. Our design-based approach (which ac-counts for culling effects) provides robust empirical evidence for compensating investment behavior. Families with low socioeconomic status reduce their family size, while families with higher status respond with reduced maternal labor sup-ply. Our results urge caution in the interpretation of estimates of the long-term effects of early-life shocks on children. These estimates should only be interpreted as reduced-form estimates, and one has to account for parental response behav-ior to reach a deeper understanding on the relationship between early-life shocks and the formation of human capital. In the case of our application, we can inter-pret the estimates as the lower bound of the biological effect. For exposed chil-dren from higher socioeconomic backgrounds, there are no detrimental effects discernable. In contrast, exposed children from lower socioeconomic backgrounds have significantly worse human capital outcomes as young adults. This suggests that compensating investment by parents with higher socioeconomic status is relatively more effective.

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Halla, M., Zweimüller, M., 2014. Parental Response to Early Human Capital Shocks: Evidence from the Chernobyl Accident. CINCH working paper series. https://doi.org/10.17185/duepublico/70895
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