In this paper, we propose a new empirical version of the Fama and French Model based on the Hausman (1978) specification test and aimed at discarding measurement errors in the variables. The proposed empirical framework is general enough to be used for correcting other financial and accounting...

This paper examines rates of return to schooling in Kazakhstan using OLS and instrumental variable (IV) methodologies. We use spouse’s education and smoking as instruments. We find that spouse’s education is a valid instrument and that conventional OLS estimates that assume the exogenous...

Using a rich sample of students from French junior high schools with a panel structure, we obtain small but significant and negative effects of class size on probabilities of educational success, in grades 6 and 7. An 8 to 10 student reduction of class size puts the child of a non-educated...

This paper surveys the empirical evidence on casual effects of education on earnings for Germany and compares alternatie studies in the light of their underlying identifying assumptions. We work out the different assumptions taken by various studies, which lead to rather different...

In 1993, Colombia implemented an ambitious health reform. Its key component was a radical transformation of the manner in which health care provision, particularly care that was directed toward lower-income individuals, was financed. We first describe the institutional aspects of the reform and...

A longstanding question in the economics of the family is the relationship between sibship size and subsequent human capital formation and economic welfare. If there is a causal "quantity-quality tradeoff," then policies that discourage large families should lead to increased human capital,...

We analyze data from the 1994-2002 waves of the British Household Panel Survey to explore the influence of parental smoking habits on their children’s smoking decisions. In order to account for the potential endogeneity of parental smoking habits we use instrumental variable methods. We find...