Séminaires LEMMA


"THE ROLE OF REPRESENTATION IN FINDING A COLLECTIVE INTERVAL"

Arianna Novaro - Université Paris I

Mardi 30 novembre 2021 - 11 h / 12 h
Lemma - 4 rue Blaise Desgoffe, 75006 Paris. Salle Maurice Desplas

Abstract :
There are numerous examples of situations where a group of agents need to find a collective interval based on their individual preferences: think for instance of a committee having to agree on a time slot for a meeting, that is asked to express their preferences over a starting/ending time (or on a starting time and a duration). In this talk I will present ongoing work about the impact that the choice of representation for the intervals has on their aggregation. 
Specifically, I will show that on discrete scales we cannot have natural rules that can be defined both as rules that aggregate separately the left and right endpoints of intervals and as rules that aggregate separately the left endpoints and the interval widths; however, on continuous scales such rules correspond to the weighted averages of the endpoints of the individual intervals.

This is joint work with Ulle Endriss (ILLC, University of Amsterdam) and Zoi Terzopoulou (LAMSADE, University of Paris Dauphine).

Economic Decisions and Social Preferences - in honor of Philippe Mongin

Jean Baccelli, Antoine Billot, Mikaël Cozic, Brian Hill et Marcus Pivato ont le plaisir d'annoncer la tenue du colloque

"Economic Decisions and Social Preferences - in honour of Philippe Mongin"

Cette manifestation sur la théorie de la décision et la théorie du choix social, tenue en mémoire de Philippe Mongin (1950-2020), aura lieu :

  • à l'Université Paris Dauphine
  • du vendredi 26 au dimanche 28 novembre 2021.

    La séance du samedi 27 se terminera par une cérémonie marquant l'obtention par Philippe du Prix de la Revue économique 2020.

L'entrée est gratuite, mais fait l'objet d'une inscription avant le 12 novembre.

Pour plus d'informations concernant le colloque (détails pratiques, programme et inscription), merci de vous reporter à son site

 

Colloquium "Economic Decisions and Social Preferences - in honour of Philippe Mongin"

It is our pleasure to announce "Economic Decisions and Social Preferences - in honour of Philippe Mongin", a three day conference on decision theory and social choice theory, held in memory of Philippe Mongin (1950-2020), that will take place at Université Paris Dauphine, from Friday 26 November to Sunday 28 November, 2021.   On Saturday 27 November, there will also be a prize ceremony to mark Philippe's receipt of the 2020 /Prix de la Revue économique/.

Jean Baccelli, Antoine Billot, Mikaël Cozic, Brian Hill et Marcus Pivato

Here are the confirmed speakers:

   * Mohammed Abdellaoui (CNRS and HEC Paris)

   * Claude D'Aspremont (CORE, Université Catholique de Louvain)

   * Richard Bradley (London School of Economics)

   * Christopher Chambers (Georgetown University)

   * Pierre André Chiappori (Columbia University)

Chercheurs invités

 

 

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