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Two-stage majoritarian choice
(Université de Montréal. Département de sciences économiques., 2020-05)
We propose a class of decisive collective choice rules that rely on an exogenous linear ordering to partition the majority relation into two acyclic relations. The first relation is used to obtain a shortlist of the feasible ...
Strategy-proof choice under monotonic additive preferences
(Université de Montréal. Département de sciences économiques., 2020-05)
We describe the class of strategy-proof mechanisms for choosing sets of objects when preferences are additive and monotonic.
Belief-weighted Nash aggregation of Savage preferences
(Université de Montréal. Département de sciences économiques., 2018-09)
The 'belief-weighted Nash social welfare functions' are methods for aggregating Savage preferences defined over a set of acts. Each such method works as follows. Fix a 0-normalized subjective expected utility representation ...
Sharing the Cost of a Public Good without Subsidies
(Université de Montréal. Département de sciences économiques., 2006-07)
We study the construction of a social ordering function for the case of a public good financed by contributions from the population, and we extend the analysis of Maniquet and Sprumont (2004) to the case when contributions ...
Infinite-Horizon Choice Functions
(Université de Montréal. Département de sciences économiques., 2006)
We analyze infinite-horizon choice functions within the setting of a simple linear technology. Time consistency and efficiency are characterized by stationary consumption and inheritance functions, as well as a transversality ...
Sharing the Cost of a Public Good: an Incentive-Constrained Axiomatic Approach
(Université de Montréal. Département de sciences économiques., 2006-07)
We study the problem of provision and cost-sharing of a public good in large economies where exclusion, complete or partial, is possible. We search for incentive-constrained efficient allocation rules that display fairness ...
Relative Egalitarianism and Related Criteria
(Université de Montréal. Département de sciences économiques., 2009-02)
We reconsider the problem of aggregating individual preference orderings into a single social ordering when alternatives are lotteries and individual preferences are of the von Neumann-Morgenstern type. Relative egalitarianism ...
An Axiomatization of the Serial Cost-Sharing Method
(Université de Montréal. Département de sciences économiques., 2009-12)
We o¤er an axiomatization of the serial cost-sharing method of Friedman and Moulin (1999). The key property in our axiom system is Group Demand Monotonicity, asking that when a group of agents raise their demands, not all ...
Resource egalitarianism with a dash of efficiency
(Université de Montréal. Département de sciences économiques., 2007-05)
Strategy-proof preference aggregation
(Université de Montréal. Département de sciences économiques., 2012-08)
An aggregation rule maps each profile of individual strict preference orderings
over a set of alternatives into a social ordering over that set. We call such a rule strategyproof if misreporting one’s preference never ...