Paris-Jourdan Sciences Économiques - UMR8545


PSE - UMR8545
48 boulevard Jourdan
75014 Paris
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Program (PDF)

18-20 December 2014

Cité Internationale Universitaire de Paris

Grand salon de la Maison du Cambodge, 17 bd Jourdan 75014 Paris

The conference starts Thursday December 18 at 1 p.m. and ends Saturday December 20 at 1 p.m.

Parallel to the development of Internet, there has been a significant growth in methods that rank various items such as Web pages, recommend purchases to customers or political parties to citizens, seek for reviewers of products, evaluate the trustworthiness of reviewers, recommend friends or colleagues in social networks, and so on. The purpose of the workshop is to gather people working on these topics in different disciplines, economics, game theory, marketing and computer science.

Topics include but are not limited to :

  • design of recommendation systems
  • design of rating systems
  • customers’ behaviors and learning
  • interaction between online recommendations and experts
  • value of information.

Organizer : Gabrielle Demange, Supported by ANR NET

The workshop is open. For a good organization, please register by sending an email to Beatrice Havet :


December 18, 2014




2:00 -2:45

"Search Direction", Simon Anderson (University of Virginia), Régis Renault

2:45 -3:30

"Lower-order choices probabilities and welfare : application to RUM", André de Palma, Karim Kilani

Coffee Break

4:00 -4:45

Quality Provision in the Presence of a Biased Intermediary”, Alexandre de Cornière, Greg Taylor (University of Oxford)

4:45 -5:30

Sales talk”, Frédéric Koessler (PSE), Vasiliki Skreta,

December 19, 2014



Muddled Information”, Frankel, Alexander (University of Chicago Booth School of Business ), Navin Kartik


Mechanism design for ad exchanges”, Vahab Mirrokni (Google Research, New York)

Coffee Break


Reinforcement learning from comparisons : Three alternatives is enough, two is not” Benoıt Laslier, Jean-Francois Laslier (PSE) TBA




Production and Manipulation of Reviews”, Marco Ottaviani (Bocconi University) and L. Nicollier

14:15 -15:00

Why are star analysts performing so poorly at stock recommendations ?”, Christian Bontemps, Thomas Lanzi, Jérôme Mathis (Université de Dauphine)

Coffee Break

15 :30-16 :15

Reputation and Prices on the e-Market:Evidence from a Major French Platform”, Grégory Jolivet, Bruno Jullien (TSE), Fabien Postel-Vinay

16:15 -17:30

"Optimal targeting strategy in a network under positive externalities", Gabrielle Demange (PSE)

December 20, 2014



Optimal Aggregation of Consumer Ratings : An Application to”, Weijia Dai, Ginger Z. Jin, Jungmin Lee, Michael Luca (Harvard Business School)

10:15 : 11:00

Optimal Design for Social Learning“, Johannes Horner (Yale University), Y.K. Che

Coffee Break


Buying and Learning with Online Ratings”, Omar Besbes, Marco Scarsini (LUISS)