-dimensional, preferences are single-peaked (strictly convex), and feasible allocation profiles cover a closed convex set. Special cases include … sense, individual gains from an arbitrary benchmark allocation: it is efficient, group-strategyproof, fair, and (for most …

establish a revenue uniqueness result: for every dominant strategy implementable allocation rule, there is a unique payment rule …

large a preference domain can be to allow for the existence of strategy-proof, symmetric, and efficient allocation rules …