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Tristan TOMALA

Professor

Economics and Decision Sciences

 Profile picture

Biography

Tristan Tomala was a student at ENSAE before doing a Ph.D. on game theory (defended in 1996) at University Paris I. Prior to joining HEC Paris, he was assistant professor (maitre de conférences) at University Paris Dauphine. His research interests are about the various aspects of information and communication in dynamic games. He studies strategic information transmission in repeated games using information theory, graph theory and cryptography and has  also a special interest for information and communcation networks.

His recent works are published in Games and Economic Behavior, Mathematics of Operations Research, Theoretical Economics, Journal of Economic Theory.

At HEC, he teaches managerial economics, microeconomics and game theory to  HEC 1st year, the Master of Financial Economics, the Master in Economics of IP Paris-HEC  and the Phd Program.

Tristan Tomala is associate editor for Operations Research Letters (Area Editor), Dynamic Games and Applications and Theory and Decision.

Scientific articles

Contracting over persistent information

Theoretical Economics, Forthcoming, (in coll. with W. ZHAO, C. MEZZETTI, L. RENOU)

Optimality and Fairness of Partisan Gerrymandering

Mathematical Programming, January 2024, vol. 203, pp 9-45, (in coll. with A. LAGARDE)

Splitting games over finite sets

Mathematical Programming, January 2024, vol. 203, pp 477–498, (in coll. with F. KOESSLER, M. LACLAU VIGERAL, J. RENAULT)

Interactive Information Design

Mathematics of Operations Research, February 2022, vol. 47, n° 1, pp 153-175, (in coll. with F. KOESSLER, M. LACLAU VIGERAL)

Long Information Design

Theoretical Economics, May 2022, vol. 17, n° 2, pp 883-927, (in coll. with F. KOESSLER, M. LACLAU VIGERAL, J. RENAULT)

Social Learning in Nonatomic Routing Games

Games and Economic Behavior, March 2022, vol. 132, pp 221-233, (in coll. with E. MACAULT, M. SCARSINI)

Persuasion with limited communication capacity

Journal of Economic Theory, November 2019, vol. 184, n° 104940, pp 1-43, (in coll. with M. LE TREUST)

Dynamic Atomic Congestion Games with Seasonal Flows

Operations Research, March-April 2018, vol. 66, n° 2, pp 327-339, (in coll. with M. SCARSINI, M. SCHÖDER)

Zero-sum revision games

Games and Economic Behavior, March 2018, vol. 108, pp 504-522, (in coll. with F. GENSBITTEL, S. LOVO, J. RENAULT)

Belief-free price formation

Journal of Financial Economics, February 2018, vol. 127, n° 2, pp 342-365, (in coll. with J. HÖRNER, S. LOVO)

Books

Théorie des jeux, Introduction à la théorie des jeux répétés

Les Editions de l'Ecole Polytechnique (in coll. with R. Laraki, J. Renault)

Chapters in edited books

Repeated Games with Complete Information

Computational Complexity - Theory, Techniques And Applications, R. A. Meyers (Ed.), Springer, Berlin, 2620-2634

Repeated Games

Encyclopedia Of Complexity And Systems Science, R. A. Meyers (Ed.), Springer, Berlin

Proceedings

Point-to-Point Strategic Communication

2020 IEEE Information Theory Workshop (ITW 2020) , 2021 , 9457639 (M. Le Treust)

Secure Communication: A Mechanism Design Approach

Proceedings of the 2009 International Conference on Game Theory for Networks, GameNets' 09, art. no. 5137413, IEEE Catalog number: CFP0982G-CDR , 2009 (L. Renou)

Working papers

A belief-based approach to signaling

Cahier de Recherche , 2024

Contracting Over Persistent Information

CEPR Discussion Series , 2022

Splitting games over finite sets

Cahier de Recherche , 2021

Information-Theoretic Limits of Strategic Communication

Cahier de Recherche du Groupe HEC , 2018

Interactive Information Design

Cahier de Recherche du Groupe HEC , 2018

Persuasion with limited communication capacity

Cahier de Recherche du Groupe HEC , 2017

Comparisons of Ambiguous Experiments

Cahier de Recherche du Groupe HEC , 2015

Markov Perfect Equilibria in Stochastic Revision Games

Cahier de Recherche du Groupe HEC , 2015

Approximate Implementation in Markovian Environments

Cahier de Recherche du Groupe HEC , 2013

Dynamic Congestion Games: The Price of Seasonality

Cahier de Recherche du Groupe HEC , 2013

Scientific articles

Optimality and Fairness of Partisan Gerrymandering

Mathematical Programming, January 2024, vol. 203, pp 9-45, (in coll. with A. LAGARDE)

Splitting games over finite sets

Mathematical Programming, January 2024, vol. 203, pp 477–498, (in coll. with F. KOESSLER, M. LACLAU VIGERAL, J. RENAULT)

Interactive Information Design

Mathematics of Operations Research, February 2022, vol. 47, n° 1, pp 153-175, (in coll. with F. KOESSLER, M. LACLAU VIGERAL)

Long Information Design

Theoretical Economics, May 2022, vol. 17, n° 2, pp 883-927, (in coll. with F. KOESSLER, M. LACLAU VIGERAL, J. RENAULT)

Books

Théorie des jeux, Introduction à la théorie des jeux répétés

Les Editions de l'Ecole Polytechnique (in coll. with R. Laraki, J. Renault)

Chapters in edited books

Repeated Games with Complete Information

Computational Complexity - Theory, Techniques And Applications, R. A. Meyers (Ed.), Springer, Berlin, 2620-2634

Repeated Games

Encyclopedia Of Complexity And Systems Science, R. A. Meyers (Ed.), Springer, Berlin

Proceedings

Point-to-Point Strategic Communication

2020 IEEE Information Theory Workshop (ITW 2020) , 2021 , 9457639 (M. Le Treust)

Secure Communication: A Mechanism Design Approach

Proceedings of the 2009 International Conference on Game Theory for Networks, GameNets' 09, art. no. 5137413, IEEE Catalog number: CFP0982G-CDR , 2009 (L. Renou)

Working papers

A belief-based approach to signaling

Cahier de Recherche , 2024

Contracting Over Persistent Information

CEPR Discussion Series , 2022

Splitting games over finite sets

Cahier de Recherche , 2021

Information-Theoretic Limits of Strategic Communication

Cahier de Recherche du Groupe HEC , 2018

Education

  • Habilitation a diriger des recherches (Qualified Research Supervisor), Economics, Université Paris Dauphine - France
  • Doctorat en Mathematiques Appliquees (Ph.D. in Mathematics), Université Paris I Panthéon Sorbonne - France
  • DEA de Modelisation et Methodes Mathematiques en Economie, Université Paris I Panthéon Sorbonne - France

Academic appointments

Academic Responsibilities at HEC

  • 2020-2023 Department Head, Economics and Decision Science HEC Paris
  • 2017- Professor, Economics - Decision Science HEC Paris
  • 2011-2016 Associate Professor, Economics - Decision Science HEC Paris
  • 2007- Member of GREGHEC, the joint research laboratory CNRS-HEC Paris HEC Paris
  • Membre du Comité pédagogie d'HEC HEC Paris

External Academic Responsibilities

  • 1998-2007 Senior lecturer Université Paris IX Dauphine
  • 2006-2006 (juin) Chercheur invité Northwestern University
  • 2003-2003 Chercheur invité Università degli Studi di Torino
  • 1996-1998 ATER Université Paris IX Dauphine

Scientific Activities

Membership in Academic or Professional Organisation

  • Membre du groupe MODE de la SMAI. Elu au bureau du Groupe MODE
  • Membre elu du conseil d'UFR de l'UFR MD a Paris Dauphine
  • Membre et co-responsable scientifique du GDR 2932 Theorie des jeux : Modelisation Mathematique et Applications (http://www.ecp6.jussieu.fr/colloques/gdr/presentation.html)
  • Membre du GDR MOA Mathematiques de l'optimisation et applications
  • Membre de l'Econometric Society

Editorial activities

  • Reviewer, Econometrica, Games and Economic Behavior, International Journal of Game Theory, Journal of EconomicTheory, Journal of Mathematical Economics, Mathematics of Operations Research, Mathematical Social Sciences, Theory and Decision
  • Member, Editorial Board, International Journal of Game Theory
  • Associate Editor, Theory and Decision
  • Associate Editor, Dynamic Games and Applications

  • Conference organisation

  • 2017-2017 Co-organisateur de la conférence ''Transatlantic Theory Workshop 2017'' avec Olivier Gossner
  • Depuis 2004, Co-organisateur du séminaire parisien de théorie des jeux (IHP, GIS X-HEC, PSE, Dauphine)
  • Depuis 2008, Co-organisateur du séminaire XHEC d'Economie Théorique, joint avec Polytechnique (GIS X-HEC)
  • Co-organisateur de la Conférence Internationale : Théorie des jeux et applications, CIRM, Luminy
  • Organisateur de l'Ecole d'été du GDR 2932 Theorie des jeux : Modélisation Mathématique et Applications, ''Transmission d'information, jeux répétés, apprentissagee'', CNRS, Aussois