28 of November 2018



19.00–21.00 h. Institute for Catalan Studies (Prat de la Riba Hall)

Coordinated by Salvador Barberà (Professor Emeritus of Economics at the Universitat Autònoma de Barcelona)


Hervé Moulin, Donald J. Robertson Chair in Economics at the University of Glasgow.

Gabrielle Demange, Director of Studies at the School of Advanced Studies in the Social Sciences (EHESS) in Paris.


The Disputatio of Barcelona 2018, entitled “Competition vs. Cooperation: Two economists’ points of view”, was organised by the Barcelona Knowledge Hub of Academia Europaea and held at the Institute for Catalan Studies (IEC) in Barcelona on November 28th. The session was moderated by Prof. Salvador Barberà, Professor Emeritus of Economics at the Universitat Autònoma de Barcelona and featured Prof. Hervé Moulin, Donald J. Robertson Chair in Economics at the University of Glasgow, and Prof. Gabrielle Demange, Director of Studies at the School of Advanced Studies in the Social Sciences (EHESS) in Paris, as invited disputantes (debaters). All three are Members of Academia Europaea, in the Economics, Business & Management Sciences section.

The topic was approached in a multidisciplinary manner and included social and political aspects of cooperation and competition in capitalist economic models, revealing complementary and contrasting facets. As usual, the Disputatio was open to the general public and welcomed questions from the audience, leading to an interactive, dynamic debate among those in attendance.


Hervé Moulin graduated in 1971 from the Ecole Normale Superieure in Paris, and received his Ph.D. in mathematics from the Université de Paris in 1975. He is currently D. J.  Robertson Chair in Economics at the University of Glasgow. He is a Fellow of the Econometric Society since 1983, of the Royal Society of Edinburgh since 2015, and of the British Academy since 2018. He is currently the President of the Game Theory Society. He has written five books and over 100 peer-reviewed articles.

His work has contributed to redefining the field of ‘normative economics’, by borrowing concepts and techniques from social choice, implementation, and game theories. The goal is to invent new mechanisms –or justify existing ones– in a variety of resource allocation and collective decision  problems. Examples include voting by successive veto, generalized median voting rules; the fair division of an estate (as in a divorce or inheritance); rationing of over-demanded commodities (such as organs for transplant or seats for a popular event); the exploitation of a “commons”, i.e., a technology producing a public good, an excludable public good, or private goods; the assignment of tasks between workers; the scheduling of jobs in a queue; sharing the cost and pricing the traffic of a communication network, etc

Gabrielle Demange is Directeur de recherches at l’Ecole des Hautes Etudes en Sciences Sociales (EHESS) and  Full Professor at Paris School of Economics. Her main interests are in social choice theory, game theory and market design  (multi-item auctions, voting rules, ranking method, coalition for-mation and networks) and financial economics (intergene-rational risk sharing, security design, intermèdia-tion). Her works on two-sided matching games and multi-item auctions with David Gale were among the first in a now large field. Her current research studies ranking methods with application to search engines on the Web and explores network models with a special interest to financial networks. Apart from research articles in top journals, she has written three textbooks in Finance and Game Theory. She is a Fellow of the Econometric Society and member of The Academia Europaea, the CEPR and Cesifo networks. She has served as a member of various editorial boards and Scientific Councils.