Yassine Lefouili


Office address:

Toulouse School of Economics

Manufacture des Tabacs

21 Allée de Brienne

31000 Toulouse - France

Current and Past Positions:

2010 -  ...    : Assistant Professor (maître de conférences), Toulouse School of Economics, France

2009 - 2010 : Postdoctoral Researcher, CORE, Belgium


2005 - 2009 : Ph.D., Economics, Paris School of Economics - Univ. Paris 1 Panthéon Sorbonne

2004 - 2005 : M.S., Statistics and Economics, ENSAE 

2001 - 2004 : B.S., Applied Mathematics and Economics ("Ingénieur" Degree), Ecole Polytechnique

Main Research Fields

Industrial Organization, Digital Economics, Law and Economics, Competition Policy, Economics of Intellectual Property.


Mergers in Two-Sided Markets: Insights from Cournot Competition (with Joao Correia-da-Silva, Bruno Jullien and Joana Pinho), Journal of Economics and Management Strategy, 28 (2019), 109-124.

Horizontal Mergers and Innovation (with Bruno Jullien), Journal of Competition Law and Economics, vol. 64 (2018), 364-392.

Cross-Licensing and Competition (with Doh-Shin Jeon), RAND Journal of Economics, vol. 49 (2018), 656-671.

Tying in Two-Sided Markets with Multi-Homing: Corrigendum and Comment (with Jay Pil Choi and Bruno Jullien), The Journal of Industrial Economics, vol. 65 (2017), 872-886.

Entry and Merger Policy (with Laure Jaunaux and Wilfried Sand-Zantman), Economics Letters, vol. 161 (2017), 124-129.

Firm Location and Monopolistic Competition (with Takanori Ago and Hamid Hamoudi), Papers in Regional Science, 2017, 96, 211-220.

Invalid but Infringed? An Analysis of the Bifurcated Patent Litigation System (with Katrin Cremers, Fabian Gaessler, Dietmar Harhoff and Christian Helmers), Journal of Economic Behavior and Organization, vol. 131 (2016), 218-242.

Does Competition Spur Innovation? The Case of Yardstick Competition, Economics Letters, vol. 137 (2015), 135-139.

Optimal Licensing of Uncertain Patents in the Shadow of Litigation (with Rabah Amir and David Encaoua), Games and Economic Behavior, vol. 88 (2014), 320-338.

Leniency Programs for Multimarket Firms: The Effect of Amnesty Plus on Cartel Formation (with Catherine Roux), International Journal of Industrial Organization, vol. 30 (2012), 624-640.

Licensing "Weak" Patents (with David Encaoua), The Journal of Industrial Economics, vol. 57 (2009), 492-525.

Choosing Intellectual Protection: Imitation, Patent Strength and Licensing (with David Encaoua), Annals of Economics and Statistics, vol. 79-80, 241-271. Reprinted in the NBER book Contributions in memory of Zvi Griliches (2010), Eds Manuel Tratjenberg and Jacques Mairesse.

Working papers

Privacy Protection and Consumer Retention (with Bruno Jullien and Michael Riordan)

Privacy Regulation and Quality Investment (with Ying Lei Toh)

What to Buy When Forum Shopping? Analyzing Court Selection in Patent Litigation (with Fabian Gaessler)

The Effect of Fee Shifting on Litigation: Evidence from a Court Reform in the UK (with Christian Helmers, Brian Love and Luke McDonagh)

Mergers and Demand-Enhancing Innovation (with Marc Bourreau and Bruno Jullien)

Collusion in Two-Sided Markets (with Joana Pinho)

Patent-Licensing Networks (with Doh-Shin Jeon)

Mergers and Investments in New Products (with Bruno Jullien)

Pooled Procurement of Drugs in Low and Middle Income Countries (with Pierre Dubois and Stéphane Straub)

Work in progress

Decentralizing Cooperation Through Bilateral Upstream Agreements (with Doh-Shin Jeon)

The  Effect of  Bifurcation on Patent  Litigation: Evidence from the U.S. Inter Partes Review (with Christian Helmers and Brian Love)

Platform Competition and the Market for Data (with Andrea Mantovani and Wilfried Sand-Zantman)

Professional service:

Associate Editor, International Journal of Industrial Organization, 2018 -...

Member of the Scientific Committee of the African Econometric Society Meeting, 2019.

Member of the Scientific Committee of the International Workshop in Law and Economics: Open Innovation, 2019.

Referee for: Economic Journal, Economics Letters, Games and Economic Behavior, Information Economics and Policy, International Economic Review, International Journal of Industrial Organization, International Review of Economics and Finance, Journal of Economic Theory, Journal of Economics and Management Strategy, Journal of Health Economics, Journal of Industrial Economics, Journal of Institutional and Theoretical Economics, Journal of Optimization Theory and Applications, Journal of Public Economic Theory, Management Science, Manchester School, Oxford Economic Papers, Papers in Regional Science, RAND Journal of Economics, Review of Industrial Organization, Review of Law and Economics, Revue d'Economie Politique, Revue Economique, Revue Française d'Economie.

Administrative and Scientific Duties:

Director of the TSE Digital Center, 2018 - ...

Director of the Jean-Jacques Laffont Chair on the Digital Economy, 2018 - ...

Member of the Advisory Board of the TSE Energy and Climate Center, 2018 - ...

Scientific Director of the Master's Program "Economics and Competition Law", 2017 - ...

External member of the hiring committee in economics, University of Grenoble, 2019.

Coordinator of an interdisciplinary working group on the economic, social, legal and ethical aspects of AI, 2018.

Director of the Master's Program "Economics and Competition Law", 2013 - 2015

Member of the Educational Board of TSE, 2013 - 2015

External member of the hiring committee in economics, University of Rennes, 2013

Co-manager of the Toulouse Network for Information Technology, 2011 - 2014

Secretary of the Industrial Organization Research Group of TSE, 2010 - 2013

Conference and Seminar Organization:

Co-organizer of the 12th Conference on the Economics of Energy and Climate, June 2019, Toulouse.

Organizer of the TSE Digital Forum, May 2019, Paris.

Co-organizer of the Workshop on the Economics of Artificial Intelligence and Data, May 2019, Brussels, Belgium.

Co-organizer of the TSE Competition Policy Seminar, 2014 - 2017

Co-organizer of the 2014 Meeting of the Toulouse Network for Information Technology, October 2014, Cambridge, Massachusetts.

Co-organizer of the 2013 Meeting of the Toulouse Network for Information Technology, October 2013, Redmond, Washington.

Co-organizer of the 2012 Meeting of the Toulouse Network for Information Technology, September 2012, Washington, D.C.

Co-organizer of the TSE Workshop on Information Technology and Intellectual Property, 2011 - 2013

Co-organizer of the TSE Industrial Organization Workshop, 2010 - 2012


Toulouse School of Economics and Toulouse Law School (2010 - ...)
Topics and Cases in Competition Policy 1 (graduate)
Topics and Cases in Competition Policy 2 (graduate)
Economics of Energy Markets (graduate)
Economics of Internet (graduate)
Economics of Innovation and Intellectual Property (graduate)
Market Regulation in the Digital World (graduate)
Workshop on the Law and Economics of Competition Policy (graduate)
Competition Law in Practice (graduate)

Industry Regulation (graduate)
Industrial Organization (graduate)
Microeconomics (undergraduate)
Market Organization (graduate)

Univ. Paris 1 Panthéon-Sorbonne (2005 - 2009)
Risk and Insurance (graduate)
Teaching assistant in Microeconomics (undergraduate), Industrial Organization (graduate), Macroeconomics (undergraduate), Applied Statistics (undergraduate), Introductory Economics (undergraduate)

Honors and Fellowships:

TSEconomist awards for best teacher in Master 1 in 2013 and best teacher in Master 2 in 2018 and 2019.

NET Institute Grant, 2013, 2014, 2017

Postdoctoral Fellowship, CORE - UCL, 2009-2010

A Research Fund Postdoctoral Grant, 2009

PhD Dissertation Award, Chancellerie des Universités de Paris, 2009

Invited speaker at the Econometric Society European Winter Meetings, Cambridge, 2008

Doctoral Fellowship from the French Ministry of Higher Education and Research, 2005-2008

Full Scholarship, Ecole Polytechnique, 2001-2004