The paper characterizes the class of transferable-utility cooperative games arising from public-good economies. In the symmetric case and in the three-players case, this class is precisely that of convex games. In general, a highly structured pattern of differences between the worths of the...

We study a simple model of assigning indivisible objects (e.g., houses, jobs, offices, etc.) to agents. Each agent receives at most one object and monetary compensations are not possible. We completely describe all rules satisfying efficiency, independence of irrelevant objects, and...