A tragedy of the commons appears when the users of a common resource have incentives to exploit it more than the socially efficient level. We analyze the situation when the tragedy of the commons is embedded in a network of users and sources. Users play a game of extractions, where they decide...

We develop a social network model of occupational segregation between different social groups, generated by the existence of positive inbreeding bias among individuals from the same group. If network referrals are important for job search, then expected homophily in the contact network structure...

The paper reviews paradigms of welfare, principally the industrialization thesis, the three worlds of welfare and social investment states and shows how these link to wider public policies and underlying assumptions. It locates explanations in historical and contemporary contexts. The literature...