We use the extension of compulsory education from five to eight years in Turkey as an instrument for educational attainment to investigate the causal effects of education on voluntary work by utilizing Turkish Time Use Survey data. Existing studies use ordinary least squares regressions and establish a positive and significant association; however, such correlation may be induced by the endogeneity problems such as omitted variable bias and reverse causality. In line with the previous studies, our OLS results also show that there is a positive association between schooling and men’s voluntary work. However, when we use the education reform as an instrument for education, a different picture emerges. The exogenous education reform increased the education levels of individuals significantly. Using the education reform as an instrument for education level, we find that increased education of compliers has a negative but insignificant causal impact on the probability and hours of voluntary work for men. Our results suggest that omitted individual factors such as ability and intelligence, and unobservable family characteristics such as values and social norms are likely to have played a role in the positive association of education with voluntary work found in OLS studies.
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