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Tristan TOMALA

Professor

Economics and Decision Sciences

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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

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)

Repeated games with public deterministic monitoring

Journal of Economic Theory, december, 2 2017, vol. 169, pp 400-424, (in coll. with M. LACLAU VIGERAL)

Approximate Implementation In Markovian Environments

Journal of Economic Theory, September 2015, vol. 159, Part A, pp 401-442, (in coll. with L. RENOU)

Secure message transmission on directed networks

Games and Economic Behavior, december, 2 2014, vol. 85, n° 1, pp 1-18, (in coll. with J. RENAULT, L. RENOU)

Belief-free communication equilibria in repeated games

Mathematics of Operations Research, November 2013, vol. 38, n° 4, pp 617-637,

Mechanism design and communication networks

Theoretical Economics, September 2012, vol. 7, n° 3, pp 489-533, (in coll. with L. Renou)

Repeated Congestion Games with Bounded Rationality

International Journal of Game Theory, August 2012, vol. 41, n° 3, pp 651-669, (in coll. with M. SCARSINI)

Communication, correlation and cheap-talk in games with public information

Games and Economic Behavior, January 2012, vol. 74, n° 1, pp 222-234, (in coll. with Y. Heller, E. Solan)

Belief-free equilibria in games with incomplete information: characterization and existence

Journal of Economic Theory, September 2011, vol. 146, n° 5, pp 1770-1795, (in coll. with J. Hörner, S. LOVO)

Books

Chapters in edited books

Proceedings

Working papers

Belief-free Market Making

Mimeo , 2012

Communication, correlation and cheap-talk in games with public information

Mimeo , 2010

Mechanism design and communication networks

Cahier de Recherche du Groupe HEC , 2010

Repeated Congestion Games with Bounded Rationality

Mimeo , 2010

Secret information transmission

Mimeo , 2010

Belief-free equilibria in games with incomplete information: characterization and existence

Cahier de Recherche du Groupe HEC , 2009

Belief-free equilibria in games with incomplete information: characterization and existence

Working Papers, Yale School of Management's Economics Research Network , 2009

Protocols for Fault Identifcation in Partially Known Networks

Cahier de Recherche du Groupe HEC , 2008

Perfect communication equilibria in repeated games with imperfect monitoring

Mimeo , 2007

A minority game with bounded recall

Cahier de recherche du CEREMADE , 2006

Scientific articles

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)

Books

Chapters in edited books

Proceedings

Working papers

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

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

  • 2017- Professor, Economics - Decision Science HEC Paris

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