The gap in university enrolment by parental education is large and persistent in many countries. In our representative survey of German adults, 74% of university graduates, but only 36% of those without a university degree, favour university education for their children. The latter are more...

We investigate how social composition affects competitive and cooperative behaviour in a linear growth model without secure property rights. If a society is homogeneous or highly fractionalized, it is in the self-interest of people to cooperate. The first-best allocation is enforced through...