We present an overlapping-generations model with two interacting teams, where young team members earn an income, whereas old team members depend on either intrateam transfers from young members (voluntary solidarity) or tax-financed transfers (compulsory solidarity). We derive the individually...

We apply a procedurally fair rule to a situation where people disagree about the value of three alternatives in the way captured by the voting paradox. The rule allows people to select a final collective ranking by submitting a bid vector with six components (the six possible rankings of the...

We present a model of price leadership on homogeneous product markets where the price leader is selected endogenously. The price leader sets and guarantees a sales price to which followers adjust according to their individual supply functions. The price leader clears the market by serving the...