The paper introduces a short scale for measuring attitudes to four fundamental principles of the just distribution of benefits and burdens in a society. The Basic Social Justice Orientations (BSJO) scale is an eight-item scale that measures agreement with the equality, equity, need, and...

We propose and experimentally test a mechanism for a class of principal-agent problems in which agents can observe each others' efforts. In this mechanism each player costlessly assigns a share of the pie to each of the other players, after observing their contributions, and the final...