We consider a two-person Cournot game of voluntary contributions to a public good with identical individual preferences, and examine equilibrium aggregate welfare under a separable, symmetric and concave social welfare function. Assuming the public good is pure, Itaya, de Meza and Myles (Econ....

We model a rent-seeking contest among two "identity ideologues", differentially located along a uni-dimensional identity continuum, and a "mercenary", who can choose any location in-between. The contest jointly awards an identity-relevant good ("religion") and an identity-irrelevant good...