We investigate the determinants of educational quality in a panel data set that includes" output and input measures for a broad number of countries. The results show that family inputs" and school resources are closely related to school outcomes, as measured by internationally" comparable test...

We investigate the determinants of educational quality in a panel data set that includes" output and input measures for a broad number of countries. The results show that family inputs" and school resources are closely related to school outcomes, as measured by internationally" comparable test...

We develop a theory of interstate conflict in which the degree of genealogical relatedness between populations has a positive effect on their conflict propensities because more closely related populations, on average, tend to interact more and develop more disputes over sets of common issues. We...