Multidimensional indices are becoming increasingly important instruments to assess the well-being of societies. They move beyond the focus on a single indicator and yet, are easy to present and communicate. A crucial step in the construction of a multidimensional index of well-being is the...

Socioeconomic segregation is often decried for denying poorer children the benefits of positive 'peer effects'. Yet standard, linear-in-means models of peer effects (a) implicitly assume that segregation is zero sum, with gains and losses to rich and poor perfectly offsetting, and (b) rule out...