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Strategyproof Choice of Acts : Beyond Dictatorship
(Université de Montréal. Département de sciences économiques., 2017-05)
We model social choices as acts mapping states of nature to (public) outcomes. A social choice function (or SCF) assigns an act to every profile of subjective expected utility preferences over acts. A SCF is strategyproof ...
Relative Nash welfarism
(Université de Montréal. Département de sciences économiques., 2017-09)
Relative Nash welfarism is a solution to the problem of aggregating von Neumann-Morgenstern preferences over a set of lotteries. It ranks such lotteries according to the product of any collection of 0-normalized von ...
Strategy-proof choice of acts : a preliminary study
(Université de Montréal. Département de sciences économiques., 2016-06)
We model social choices as acts mapping states of the world to (social) outcomes. A (social choice) rule assigns an act to every profile of subjective expected utility preferences over acts. A rule is strategy-proof if no ...
Ordinally consistent tournament solutions
(Université de Montréal. Département de sciences économiques., 2016-03)
A set ranking method assigns to each tournament on a given set an ordering of the subsets of that set. Such a method is consistent if (i) the items in the set are ranked in the same order as the sets of items they beat and ...
Welfare criteria from choice: the sequential solution
(Université de Montréal. Département de sciences économiques., 2015-01)
We study the problem of deriving a complete welfare ordering from a choice function. Under the sequential solution, the best alternative is the alternative chosen from the universal set; the second best is the one chosen ...
Ranking by rating
(Université de Montréal. Département de sciences économiques., 2016-02)
Each item in a given collection is characterized by a set of possible performances. A (ranking) method is a function that assigns an ordering of the items to every performance profile. Ranking by Rating consists in evaluating ...
Size invariant measures of association: characterization and difficulties
(Université de Montréal. Département de sciences économiques., 2014-08)
A measure of association is row-size invariant if it is unaffected by the multiplication of all entries in a row of a cross-classification table by a same positive number. It is class-size invariant if it is unaffected by ...
Every Choice Function is Backwards-Induction Rationalizable
(Université de Montréal. Département de sciences économiques., 2013-01)
A choice function is backwards-induction rationalizable if there exists a finite perfect-information extensive-form game such that, for each subset of alternatives, the
backwards-induction outcome of the restriction of ...