Séminaires

Are policymakers ambiguity averse?

Economie et Sciences de la décision

Intervenant : Professeur Loïc Berger
IESEG

26 octobre 2017 - HEC Campus - Bâtiment T - Salle T017 - De 14h00 à 15h00


We investigate the ambiguity preferences of a unique sample of real-life policymakers at the Paris UN climate conference (COP21). We find that policymakers are generally ambiguity averse. Using a simple design which explicitly makes the distinction between objective and subjective probabilities presented in different layers, we are moreover able to detect a strong association between preferences towards model uncertainty and those towards ambiguity. These results suggest that the preferences policymakers exhibit towards ambiguity are not necessarily due to an irrational behavior (such as the inability to reduce compound lotteries), but rather to intrinsic preferences over unknown probabilities, thus shedding new light on the role that ambiguity models can play in informing policymaking. Results are confirmed in a laboratory experiment with university students.

Titre : TBA

Economie et Sciences de la décision

Intervenant : Claire Lelarge
Paris Sud

10 septembre 2019 - HEC Campus


Titre : TBA

Economie et Sciences de la décision

Intervenant : Larry Samuelson
Yale

13 juin 2019 - HEC Campus


Titre : TBA

Economie et Sciences de la décision

Intervenant : Gaetano Gaballo
Banque de France & PSE

19 mars 2019 - HEC Campus


Titre : TBA

Economie et Sciences de la décision

Intervenant : Diego Puga
CEMFI

12 mars 2019 - HEC Campus


Titre : TBA

Economie et Sciences de la décision

Intervenant : Daniel Chen
Toulouse School of Economics

21 février 2019 - HEC Campus



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