Why do people in rich countries not transfer more of their income to people in the world's poorest countries? To study this question and the relative importance of needs, entitlements, and nationality in people's social preferences, we conducted a real effort fairness experiment where people in...

We develop an equilibrium model of wages and estimate it using administrative data from Norway. Coworkers interact through a task-assignment model, and wages are determined through multi-lateral bargaining over the surplus that accrues to the workforce. Seniority affects wages through workplace...