SÉMINAIRE DE RECHERCHE EN ÉCONOMIE - GATE LYON SAINT-ÉTIENNE : Federico Fioravanti

Federico Fioravanti (GATE) présentera un séminaire intitulé : Expert Classification Aggregation.

Résumé / abstract  : We consider the problem where a set of individuals has to classify m objects into p categories by aggregating the individual classifications, and no category can be left empty.
An aggregator satisfies Expertise if individuals are decisive either over the classification of a given object, or the classification into a given category.  We show that requiring an aggregator to satisfy Expertise (or variants of it) and be either unanimous or independent leads to numerous impossibility results.