Efficiency among strategy-proof rules: several commodities and agents with single-peaked preferences

AGUSTÍN G. BONIFACIO

Buenos Aires

Workshop; Primer Workshop en Economía Matemática; 2014

Universidad de San Andrés

We study strategy-proof allocation rules in economies with several perfectly divisible commodities and single- peaked preferences. A rule is efficient among strategy-proof rules (Anno and Sasaki, 2013) if it is strategy-proof and it is not Pareto-dominated by any other strategy-proof rule. We show that the uniform allocation rule is the only rule that satisfies efficiency among strategy-proof rules, the equal endowments lower bound and replacement mono- tonicity. This result extends to arbitrarily many agents the two-agent characterization presented by Anno and Sasaki (2013).