"There has been a remarkable upsurge of debate about increasing inequalities and their societal implications, reinforced by the economic crisis but bubbling to the surface before it. This has been seen in popular discourse, media coverage, political debate, and research in the social sciences....

The measurement of Inequality of Opportunity has attracted a lot of attention in recent years, despite of the fact that it is very limited by the scarce availability of data on family background. In this paper we propose a method to overcome this limitation, which consists of using another...