Does more schooling improve health outcomes and health related behaviors? Evidence from U.K. twins
Vikesh Amin, Department of Economics, Central Michigan University, United States ; Jere R. Behrman, University of Pennsylvania, United States ; Tim D. Spector, King's College London, United Kingdom
Economics of Education Review Volume 35, Number 1, ISSN 0272-7757 Publisher: Elsevier Ltd
Several recent studies using instrumental variables based on changes in compulsory school-leaving age laws have estimated the causal effect of schooling on health outcomes and health-related behaviors in the U.K. Despite using the same identification strategy and similar datasets, no consensus has been reached. We contribute to the literature by providing results for the U.K. using a different research design and a different dataset. Specifically, we estimate the effect of schooling on health outcomes (obesity and physical health) and health-related behaviors (smoking, alcohol consumption and exercise) for women through within-MZ twins estimates using the TwinsUK database. For physical health, alcohol consumption and exercise, the within-MZ twins estimates are uninformative about whether there is a causal effect. However, we find (1) that the significant association between schooling and smoking status is due to unobserved endowments that are correlated with schooling and smoking and (2) there is some indication that more schooling reduces the body mass index for women, even once these unobserved endowments have been controlled for.
Amin, V., Behrman, J.R. & Spector, T.D. (2013). Does more schooling improve health outcomes and health related behaviors? Evidence from U.K. twins. Economics of Education Review, 35(1), 134-148. Elsevier Ltd.