Tristan TOMALA

Professor

Economics and Decision Sciences

tomala@hec.fr https://sites.google.com/site/tristantomala2
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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

General properties of long-run supergames

Dynamic Games and Applications, 2011, vol. 1, n° 2, pp 319-350, (in coll. with J. Renault)

Fault Reporting in Partially Known Networks and Folk Theorems

Operations Research, May-June 2011, vol. 59, n° 3, pp 754-763,

Finitely repeated games with semi-standard monitoring

Journal of Mathematical Economics, January 2011, vol. 47, n° 1, pp 14-21, (in coll. with P. Contou-Carrère)

Perfect communication equilibria in repeated games with imperfect monitoring

Games and Economic Behavior, November 2009, vol. 67, n° 2, pp 682-694,

Informationally optimal correlation

Mathematical Programming, January 2009, vol. 116, n° 1/2, pp 147-172, (in coll. with O. Gossner, R. Laraki)

Playing off-line games with bounded rationality

Mathematical Social Sciences, September 2008, vol. 56, n° 2, pp 207-223, (in coll. with M. SCARSINI, J. Renault)

Probabilistic reliability and privacy of communication using multicast in general neighbor networks

Journal of Cryptology, April 2008, vol. 21, n° 2, (in coll. with J. Renault)

Entropy bounds on Bayesian Learning

Journal of Mathematical Economics, January 2008, vol. 44, n° 1, pp 24-32, (in coll. with O. Gossner)

Secret Correlation in Repeated Games with Imperfect Monitoring

Mathematics of Operations Research, december, 2 2007, vol. 32, n° 2, pp 413-424, (in coll. with O. Gossner)

The emergence of complex social networks, a discussion

Annales d'Economie et de Statistique, April-June 2007, n° 86, pp 19-23,

Books

Chapters in edited books

Proceedings

Working papers

Entropy bounds on Bayesian Learning

Cahier de recherche du CEREMADE , 2006

Reliability and security of multicast communication in general networks

Cahier de recherche du CEREMADE , 2005

The controlled biased coin problem

Cahier de recherche du CEREMADE , 2005

Informationally optimal correlation

Cahier de recherche du CEREMADE , 2004

On Subgame-Perfect Communication Equilibria in Repeated Games with Imperfect monitoring

Cahier de recherche du CEREMADE , 2004

Secret correlation in repeated games with signals

Cahier de recherche du CEREMADE , 2004

Value of information in repeated decision problems

Mimeo , 2025

Scientific articles

Belief-free price formation

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

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)

Repeated games with public deterministic monitoring

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

Books

Chapters in edited books

Proceedings

Working papers

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

Belief-free Market Making

Mimeo , 2012

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

Mimeo , 2010

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