Ekeland Ivar - CV


Ekeland Ivar

Professeur émérite




Fellow of the Royal Society of Canada

Member of the Academia Europea

Foreign member of the Academies ofNorway, Palestine and Austria

Honorary doctorates from the Universities ofBritish Columbia,Saint-Petersburg, and Vienna

Academic career

Service to the scientific community


Journal editorships

Thesis supervisions



Student at Ecole Normale Supérieure

Research assistant at CNRS

Professor at the University of Paris-Dauphine

Canada Research Chair in Mathematical Economics, University of British Columbia

Professor Emeritus at the University of Paris-Dauphine



President of the University of Paris-Dauphine

President of the Scientific Council of Ecole Normale Supérieure

President of the National Board for Professional Higher Education (IUP)

Chair of the Review Panel for Mathematical Education in French-speaking Belgian universities

Chair of the Review Panel for Mathematical Research in Norwegian universities

Director, the Pacific Institute of Mathematical Sciences (PIMS)


Co-Chair of the Scientific committee for the 2011 International Congress of Industrial and Applied Mathematics (ICIAM)

Member of the Forschungskuratorium of the Austrian Academy of Sciences

Président du Conseil Scientifique de la Fondation du Risque


Member of the Scienfic Advisory Board of the Toulouse School of Economics

2020- present
Member of the Comité Scientifique de l'Autorité des Marché Financiers

Member of the Academia Europea



Invited speaker at the International Congress of Mathematicians

Paul Langevin prize of the Paris Academy of Sciences

Jean Rostand prize for my book “Mathematics and the Unexpected”

d'Alembert prize for my book “The broken dice“ 

Honorary doctorate from the University of British Columbia (Canada)

Honorary doctorate from the Saint-Peterburg University of Economics and Finance (Russia)

Grand Prize of the Belgian Academy of Sciences

Foreign member, the Norwegian Academy of Sciences

Sara Lee Chair in Economics, University of Chicago

Public lecture at the International Congress of Industrial and Applied Mathematics (ICIAM)

Fellow of the Royal Society of Canada

Foreign member, the Palestinian Academy for Science and Technology

Honorary degree from l'Ecole Internationale des Sciences du Traitement de l'Information

Foreign member, the Austrian Academy of Sciences

Honorary doctorate from the University of Vienna

Member of the Academia Europea


Founder and Editor-in-Chief, Annales de l'Institut Henri Poincaré, Seric C, Analyse Non Linéaire

2011- 2015
Editor-in-Chief, Mathematics and Financial Economics



There are two types of thesis in France : the first one is equivalent to a PhD, and qualifies its holder for an assisant professorship, the second one requires several more years of work, qualifies its defender for a professorship


PhD thesis (thèse de 3ème cycle ou thèse)

Lasry (1972), Berliocchi (1972), Quetin (1973), Momal (1974), Lebourg (1975), Henri (1978), Bougeard (1978), Orthmans (1979), Gaussens (1979), Azé (1980), Frenisy (1980), Blot (1981), Truc J.C. (1983), Truc M. (1983), Ollivry (1983), Albizatti (1983), Viterbo (1985), Brousseau (1985), Mathlouti (1986), Ranty (1987), Assem (1987), Saddek (1988), Daly (1989), Künzle (1990), Geoffard (1991), Ounaïes (1991), Romano (1992), Guérinet (1992), Daher (1993), Séré (1993), Bolle (1994), Burdeau (1994), Praud-Lion (1996), Aloqeili (2000), Carlier (2001), Dia (2003), Basta (2003), Moreno (2008)


Professorhip thesis (thèse d'état, ou habilitation à diriger des recherches)

Lasry (1975), Balasko (1977), Methlouti-Trad (1979), Gaussens (1984), Lassoued (1987), Blot (1992), Mathlouti (1993), Viterbo (1989), Séré (1994), Vieille (1998), Touzi (1999), Carlier (2003), Sant'Ambrogio (2010)

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Ekeland I., Séré É. (2021), A surjection theorem for maps with singular perturbation and loss of derivatives, Journal of the European Mathematical Society, vol. 23, n°10, p. 323–3349

Alasseur C., Ekeland I., Élie R., Hernández Santibáñez N., Possamaï D. (2020), An adverse selection approach to power pricing, SIAM Journal on Control and Optimization, vol. 58, n°2, p. 686-713

Ekeland I., Lautier D., Villeneuve B. (2019), Hedging pressure and speculation in commodity markets, Economic Theory, vol. 68, n°1, p. 83--123

Carluccio J., Ekeland I., Guesnerie R. (2017), Fragmentation and Wage Inequality: Insights from a Simple Model, Annals of Economics and Statistics, n°125-126, p. 113-134

Asheim G., Ekeland I. (2016), Resource conservation across generations in a Ramsey-Chichilnisky model, Economic Theory, vol. 61, n°4, p. 611-639

Ekeland I., Queyranne M. (2015), Optimal pits and optimal transportation, ESAIM: Mathematical Modelling and Numerical Analysis, vol. 49, n°6, p. 1659-1670

Carlier G., Aloqeili M., Ekeland I. (2014), Restrictions and identification in a multidimensional risk-sharing problem, Economic Theory, vol. 56, n°2, p. 409-423

Ekeland I. (2014), How to Build Stable Relationships Between People Who Lie and Cheat, 2199-1413, vol. 82, n°1, p. 67-79

Schachermayer W., Ekeland I. (2014), Optimal transport and the geometry of L1(Rd), Proceedings of the American Mathematical Society, vol. 142, p. 3585-3596

Ekeland I., Long Y., Zhou Q. (2013), A new class of problems in the calculus of variations, Regular and Chaotic Dynamics, vol. 18, n°6, p. 553-584

Galichon A., Ekeland I. (2013), The housing problem and revealed preference theory: duality and an application, Economic Theory, vol. 54, n°3, p. 425-441

Ekeland I., Galichon A., Henry M. (2012), Comonotonic Measures of Multivariate Risks, Mathematical Finance, vol. 22, n°1, p. 109-132

Pirvu T., Mbodji O., Ekeland I. (2012), Time-Consistent Portfolio Management, SIAM Journal on Financial Mathematics, vol. 3, n°1, p. 1-32

Ekeland I., Schachermayer W. (2011), Law invariant risk measures on L∞ (ℝd), Statistics & Risk Modeling, vol. 28, n°3, p. 195-225

Ekeland I., Galichon A., Henry M. (2010), Optimal transportation and the falsifiability of incompletely specified economic models, Economic Theory, vol. 42, n°2, p. 355 - 374

Carlier G., Ekeland I. (2010), Matching for Teams, Economic Theory, vol. 42, n°2, p. 397-418

Touzi N., Ekeland I., Carlier G. (2007), Optimal derivatives design for mean–variance agents under adverse selection, Mathematics and Financial Economics, vol. 1, n°1, p. 57-80

Ekeland I., Carlier G. (2007), Equilibrium structure of a bidimensional asymmetric city, Nonlinear Analysis: Real World Applications, vol. 8, n°3, p. 725-748

Taflin E., Ekeland I. (2005), A theory of bond portfolios, Annals of Applied Probability, vol. 15, n°2, p. 1260-1305

Nesheim L., Heckman J., Ekeland I. (2004), Identification and Estimation of Hedonic Models, The Journal of Political Economy, vol. 112, n°S1, p. S60-S109

Chiappori P-A., Ekeland I. (2004), Individual excess demands, Journal of Mathematical Economics, vol. 40, n°1-2, p. 41-57

Bouchard B., Ekeland I., Touzi N. (2004), On the Malliavin approach to Monte Carlo approximation of conditional expectations, Finance and Stochastics, vol. 8, n°1, p. 45-71

Carlier G., Ekeland I. (2004), The Structure of Cities, Journal of Global Optimization, vol. 29, n°4, p. 371-376

Chiappori P-A., Ekeland I. (2004), Applying exterior differential calculus to economics: a presentation and some new results, Japan and the World Economy, vol. 16, n°3, p. 363-385

Chiappori P-A., Ekeland I., Kubler F., Polemarchakis H. (2002), The Identification of Preferences from Equilibrium Prices under Uncertainty, Journal of Economic Theory, vol. 102, n°2, p. 403-420

Ekeland I., Nirenberg L. (2002), A Convex Darboux Theorem, Methods and Applications of Analysis, vol. 9, n°3, p. 329-344

Ekeland I. (2002), Equilibrium: In the balance, 2199-1413, n°417, p. 385

Ekeland I. (2000), Curves and numbers, 2199-1413, n°405, p. 748-749

Ekeland I. (2000), Testable consequences of economic theory, Decisions in Economics and Finance, vol. 23, n°1, p. 1-13

Ekeland I. (1999), Agreeing on strategies, 2199-1413, n°400, p. 623-624

Ekeland I. (1999), Counting up to four, 2199-1413, n°397, p. 393-394

Ekeland I., Chiappori P-A. (1999), Aggregation and Market Demand: An Exterior Differential Calculus Viewpoint, Econometrica, vol. 67, n°6, p. 1435-1457

Chiappori P-A., Ekeland I. (1999), Disaggregation of excess demand functions in incomplete markets, Journal of Mathematical Economics, vol. 31, n°1, p. 111-129

Ekeland I. (1998), Nonlinear modes of vibration, 2199-1413, n°395, p. 116-117

Ekeland I. (1998), The big match, 2199-1413, n°393, p. 411-413

Ekeland I. (1998), How to melt if you must, 2199-1413, n°392, p. 654-657

Ghoussoub N., Ekeland I. (1998), Z 2-equivariant Ljusternik-Schnirelman theory for non-even functionals, Annales de l'Institut Henri Poincaré (C) Analyse non linéaire, vol. 15, n°3, p. 341-370

Ekeland I. (1997), What you eat is how many you are, 2199-1413, n°389, p. 16-17

Tehrani H., Ekeland I., Ghoussoub N. (1996), Multiple Solutions for a Classical Problem in the Calculus of Variations, Journal of Differential Equations, vol. 131, n°2, p. 229-243

D'Onofrio B., Ekeland I. (1990), Hamiltonian systems with elliptic periodic orbits, Nonlinear Analysis, vol. 14, n°1, p. 11-21

Zelati V., Ekeland I., Séré E. (1990), A variational approach to homolinic orbits in Hamiltonian systems, Mathematische Annalen, vol. 288, n°1, p. 133-160

Hofer H., Ekeland I. (1990), Syplectic topology and Hamiltonian dynamics II, Mathematische Zeitschrift, vol. 203, n°1, p. 553-567

Hofer H., Ekeland I. (1989), Symplectic topology and Hamiltonian dynamics, Mathematische Zeitschrift, vol. 200, n°3, p. 355-378

Coti Zelati V., Ekeland I., Ambrosetti A. (1987), Symmetry breaking in Hamiltonian systems, Journal of Differential Equations, vol. 67, n°2, p. 165-184

Hofer H., Ekeland I. (1987), Convex Hamiltonian energy surfaces and their periodic trajectories, Communications in Mathematical Physics, vol. 113, n°3, p. 419-469

Ekeland I. (1984), A Morse Theory for Hamiltonian Systems, North-Holland Mathematics Studies, vol. 92, p. 165-172

Ekeland I. (1983), A perturbation theory near convex Hamiltonian systems, Journal of Differential Equations, vol. 50, n°3, p. 407-440

Clarke F., Ekeland I. (1982), Nonlinear oscillations and boundary value problems for Hamiltonian systems, Archive for Rational Mechanics and Analysis, vol. 78, n°4, p. 315-333

Ekeland I. (1979), Periodic solutions of Hamiltonian equations and a theorem of P. Rabinowitz, Journal of Differential Equations, vol. 34, n°3, p. 523-534

Ekeland I. (1974), Topologie differentielle et theorie des jeux, Topology, vol. 13, n°4, p. 375-388

Ekeland I. (1974), On the variational principle, Journal of Mathematical Analysis and Applications, vol. 47, n°2, p. 324-353

Ekeland I. (1972), Sur le contrôle optimal de systèmes gouvernés par des equations elliptiques, Journal of Functional Analysis, vol. 9, n°1, p. 1-62


Lasry J-M., Lautier D., Fessler D., Ekeland I. (2013), The ocean as a global system, Portland, Oregon: ESKA, 162 p.

Elster J., Ekeland I. (2011), Théorie économique et rationalité, Paris: Vuibert, 87 p.

Touzi N., Çinlar E., Jouini E., Scheinkman J., Carmona R., Ekeland I. (2004), Paris-Princeton Lectures on Mathematical Finance 2003 Springer, 250 p.

Ekeland I., Kalika M., Chevalier J-M., Frison-Roche M-A. (2000), Internet et nos fondamentaux, Paris: PUF - Presses Universitaires de France, 128 p.

Ekeland I. (2000), Le meilleur des mondes possibles. Mathématiques et destinées., Paris: Le Seuil, 301 p.

Chevalier J-M., Frison-Roche M-A., Ekeland I. (1999), L'idée du service public est-elle encore soutenable ?, Paris: PUF - Presses Universitaires de France, 261 p.

Ekeland I. (1995), Le chaos, Paris: Flammarion, 127 p.

Ekeland I. (1991), Au hasard. La chance, la science et le monde, Paris: Le Seuil, 199 p.

Berestycki H., Coron J-M., Ekeland I. (1990), Variational Methods. Proceedings of a Conference. Paris, June 1988., Boston: Springer, 477 p.

Ekeland I. (1990), Convexity Methods in Hamiltonian Mechanics, Berlin: Springer, 247 p.

Ekeland I. (1984), Le calcul, l'imprévu, Paris: Le Seuil, 165 p.

Ekeland I., Turnbull T. (1983), Infinite-dimensional optimization and convexity, Chicago and London: University of Chicago Press, 166 p.

Aubin J-P., Bensoussan A., Ekeland I. (1981), Mathematical Techniques of Optimization, Control and Decision, Boston: Springer, 212 p.

Ekeland I. (1979), Eléments d'économie mathématique, Paris: Hermann, 279 p.

Temam R., Ekeland I. (1976), Convex Analysis and variational problems, Amsterdam: Elsevier, 402 p.

Chapitres d'ouvrage

Ekeland I., Jouini E. (2005), La modélisation économique en économie, in Yoccoz, Jean-Christophe, Les mathématiques dans le monde scientifique contemporain, Paris: Tec & Doc, p. 241-262

Directions d'ouvrage

Carmona R., Cinlar E., Ekeland I., Jouini E., Scheinkman J., Touzi N. (2007), Paris-Princeton Lectures on Mathematical Finance 2004, Berlin Heidelberg: Springer, 248 p.

Carmona R., Cinlar E., Ekeland I., Jouini E., Scheinkman J., Touzi N. (2004), Paris-Princeton Lectures on Mathematical Finance 2003, Berlin Heidelberg: Springer, 254 p.

Carmona R., Cinlar E., Ekeland I., Jouini E., Scheinkman J., Touzi N. (2003), Paris-Princeton Lectures on Mathematical Finance 2002, Berlin Heidelberg: Springer, 178 p.

Communications avec actes

Ekeland I. (1970), Suites minimisantes et solutions de certains problèmes de contrôle optimal, in A. V. Balakrishnan; M. Contensou; B. F. de Veubeke; P. Krée; J. L. Lions; N. N. Moiseev, Symposium on Optimization Held in Nice, June 29th – July 5th, 1969, Berlin Heidelberg, Springer, 79-84 p.

Communications sans actes

Ekeland I., Jaeck E., Lautier D., Villeneuve B. (2022), The joint dynamics of spot and futures prices, Commodity and energy conference - CEMA 2022, CHICAGO, États-Unis

Lautier D., Villeneuve B., Ekeland I., Jaeck E. (2019), Equilibrium relations between spot and futures markets, Commodities, Volatility and Risk Management: the impacts of trade restrictions, market imperfections, and green finance, Paris, France

Lautier D., Ekeland I., Villeneuve B. (2018), Hedging pressure and speculation in commodity futures markets, 2nd Commodity Winter Workshop, Nantes, France

Lautier D., Ekeland I., Villeneuve B. (2014), Speculation in commodity futures markets: A simple equilibrium model, séminaire Hotelling (RITM – ENS CACHAN), Paris, France

Villeneuve B., Ekeland I., Lautier D. (2013), A simple equilibrium model for a commodity market with spot trades and futures contracts, 30th International French Finance Association Conference, Lyon, France

Présentation(s) dans un séminaire de recherche

Ekeland I., Jaeck E., Lautier D., Villeneuve B. (2019), “Equilibrium relations between the spot and futures markets for commodities: an infinite horizon model”,, in Center for Environmental Economics Montpellier, Montpellier

Prépublications / Cahiers de recherche

Ekeland I., Séré E. (2018), A surjection theorem for singular perturbations with loss of derivatives, Paris, Cahier de recherche CEREMADE, Université Paris Dauphine-PSL, 24 p.

Séré E., Ekeland I. (2014), An implicit function theorem for non-smooth maps between Fréchet spaces, Paris, Université Paris-Dauphine, 24 p.

Long Y., Zhou Q., Ekeland I. (2012), Economic growth and sustainable development: how should we discount the future?, Paris, Cahiers de la Chaire Finance et Développement Durable, 47 p.

Ekeland I. (2010), Discounting the Future: the Case of Climate Change, Paris, Cahiers de la Chaire Finance et Développement Durable, 31 p.

Pareja C., Ekeland I., Sumaila U. (2009), Fisheries Management and Intergenerational Equity, Paris, Cahiers de la Chaire Finance et Développement Durable, 26 p.

Ekeland I., Carlier G. (2003), Optimal transportation and the structure of cities, Paris, Université Paris-Dauphine, 34 p.

Carlier G., Levin V., Ekeland I., Shananin A. (2002), A system of inequalities arising in mathematical economics and connected with the Monge-Kantorovich problem, Paris, Cahiers du CEREMADE, 13 p.

Chiappori P-A., Ekeland I., Kubler F., Polemarchakis H. (1999), The identification of preferences from equilibrium prices, Louvain, CORE Discussion Papers, 22 p.

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