How far from the tree does the leaf fall?

By Antonio Villar. Equality of opportunity is a lofty ideal, but some societies get closer to achieving it than others. Regarding compulsory education, results from PISA show that socio-economically disadvantaged students in the OECD have much higher chances of being low performers than their socio-economically advantaged peers. And also, that they have much lower chances of being high performers. More...