Is There Any Threshold in the Relationship between Mother's Education and Child Health? Evidence from Nigeria

The literature on mother's education and child health casually observes some nonlinearities and also a threshold in the relationship. Even though this nonlinearity or threshold has significant bearing on policy matters, any rigorous attempt to address this issue is missing in the literature. With height for age z score (HAZ) as a proxy for long run child health capital, regression results reveal that there is hardly any significant effects of mother's education on child health if mothers do not go past primary education. We use Hansen (2000) for threshold estimation and it also corroborates the regression result about the existence of a threshold