Partial Insurance and Investments in Children
利用美国青年纵向调查数据，研究永久性和暂时性收入冲击对父母子女投资的影响，发现永久性冲击下存在部分保险但反应较小，暂时性冲击下无法拒绝完全保险假设。
This article studies the impact of permanent and transitory shocks to income on parental investments in children. We use panel data on family income and an index of investments in children, from the Children of the National Longitudinal Survey of Youth. We find that there is partial insurance of parental investments against permanent income shocks but the magnitude of the estimated responses is small. We cannot reject the hypothesis of full insurance against temporary shocks. Another interpretation of our findings is that insurance possibilities are limited but the fact that skill is a non‐separable function of parental investments over time results in small reactions of these investments to income shocks, especially at later ages.