rules. The stability and efficiency of a partition depends on the matching rule φ. The results are stated under various …We define two versions of stability and efficiency of partitions and analyze their relationships for some matching … the matching rule is individually rational and Pareto optimal, the set of φ-stable and φ-efficient partitions coincide …

consider the notion of "efficient" partition that minimizes the total policy-related costs and aggregate personalized costs. We … (belonging to the partition or not) has an incentive to break away from the rest and to set its own policy. Our main result is … that, with a unidimensional policy space and single-peaked personalized costs, every efficient partition is sustainable. We …

This paper analyses the efficiency of the equilibrium allocation in a matching model with two types of workers and jobs … production technologies. Finally, in an extension we derive a tax scheme that restores efficiency and we show how workers …

maximum matching can avoid this risk and enjoy higher payoffs than inessential players. Although the search for partners is …