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Reference Groups and Individual Deprivation
(Université de Montréal. Département de sciences économiques., 2004)
We provide an axiomatization of Yitzhaki’s index of individual deprivation. Our result differs from an earlier characterization due to Ebert and Moyes in the way the reference group of an individual is represented in the ...
Intertemporal Social Evaluation
(Université de Montréal. Département de sciences économiques., 2005)
Intertemporal social-evaluation rules provide us with social criteria that can be used to assess the relative desirability of utility distributions across generations. The trade-offs between the well-being of different ...
Relative Uncertainty and Additively Representable Set Rankings
(Université de Montréal. Département de sciences économiques., 2004)
This paper proposes a definition of relative uncertainty aversion for decision models under complete uncertainty. It is shown that, for a large class of decision rules characterized by a set of plausible axioms, the new ...
Deprivation and Social Exclusion
(Université de Montréal. Département de sciences économiques., 2004)
Social exclusion manifests itself in the lack of an individual’s access to functionings as compared to other members of society. Thus, the concept is closely related to deprivation. We view deprivation as having two basic ...
An axiomatic characterization of the MVSHN group fitness ordering
(Université de Montréal. Département de sciences économiques., 2012-09)
In order to analyze a unicellular-multicellular evolutionary transition, a multicellular organism is identified with the vector of viabilities and fecundities of its constituent cells. The Michod–Viossat–Solari–Hurand–Nedelcu ...
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 ...
Inclusive fitness maximization: an axiomatic approach
(Université de Montréal. Département de sciences économiques., 2013-05)
Kin selection theorists argue that evolution in social contexts will lead organisms to behave as if maximizing their inclusive, as opposed to personal, fitness. The inclusive fitness concept allows biologists to treat ...
Single-basined choice
(Université de Montréal. Département de sciences économiques., 2013-06-03)
Single-basined preferences generalize single-dipped preferences by allowing for multiple worst elements. These preferences have played an important role in areas such as voting, strategy-proofness and matching problems. ...
Proximity-Sensitive Individual Deprivation Measures
(Université de Montréal. Département de sciences économiques., 2012-12)
We propose and characterize a generalization of the classical linear index of individual deprivation based on income shortfalls. Unlike the original measure, our class allows for increases in the income of a higher-income ...
Maximal-Element Rationalizability
(Université de Montréal. Département de sciences économiques., 2002)
We examine the maximal-element rationalizability of choice functions with arbitrary do-mains. While rationality formulated in terms of the choice of greatest elements according to a rationalizing relation has been analyzed ...