(2024) Put-call parities, absence of arbitrage opportunities and nonlinear pricing rules, Mathematical Finance, 34 (3) 1242-1262 (with Lorenzo Bastianello and Alain Chateauneuf). (pdf)
(2024) Gain-loss Hedging and Cumulative Prospect Theory, Mathematical Social Science, 131, 40-47 (with Lorenzo Bastianello and Alain Chateauneuf). (pdf)
(2024) Accessibility of Pareto Optima, Journal of Mathematical Economics, (2024) 115, 103059,ISSN 0304-4068. (pdf)
(2023) Linear Exchange Economies, in Marginal Revolution in Economics: A Reappraisal, Toru Maruyama (Ed.): Monographs in Mathematical Economics (MME) 6, 239-250, Springer Verlag. (pdf)
(2023) On an Infinite Dimensional Generalization of the Excess Demand Theorem of David Gale, Journal of Pure and Applied Functional Analysis 8, 1333-1340 (with Huiyi Guo and Nicholas Yannelis). (pdf)
(2022) Special Issue in honor of Nicholas C. Yannelis – Part II, Economic Theory, 73, 377-385 (with Rabah Amir, Ali Khan, David Levine, and Edward Prescott)
(2022) Submodular financial markets with frictions, Economic Theory, 73, 721–744 (with Alain Chateauneuf)
Choquet representability of submodular functions, Mathematical Programming (2018) 168, 1-2, 615–629 (with Alain Chateauneuf).
Eliminating useless portfolios in constrained financial economies, Economic Theory (2017) 63 (1) 159–190 (with Zaier Aouani).
Characterizing useless-free financial structures, Set-Valued and Variational Analysis, (2016) 24 (1) 149-166 (with Zaier Aouani).
A remark on the set of arbitrage-free prices in a multi-period economy, International Journal of Economic Theory, 9 (1) (2013) 35-43 (with Abishek Ranjan).
Reduced equivalent form of a financial structure, Journal of Mathematical Economics, 47 (2011) 318-327 (with Zaier Aouani).
Arbitrage and Equilibrium with Portfolio Constraints, Economic Theory, 45 (2010) 227-252 (with Ramu Gopalan).
Existence of financial equilibria with restricted participation, Journal of Mathematical Economics, (2009) 45 772-786 (with Zaier Aouani).
Existence of pseudo-equilibria in a financial economy, Journal of Fixed Point Theory and Applications, 6 (2009) 305-319 (with Philippe Bich).
Elimination of arbitrage states in asymmetric information models, Economic Theory, 38 2 (2009) 287-293 (with L. De Boisdeffre)
Existence of equilibria with a tight marginal pricing rule, Journal of Mathematical Economics, (2008) 44 7-8 613-624 (with Jean-Marc Bonnisseau)
The marginal pricing rule revisited, Economic Theory, (2007) 33 579-589 (with J.-M. Bonnisseau and M.-O. Czarnecki)
Existence of financial equilibria in a multiperiod stochastic economy, Advances in Mathematical Economics 8 (2006) 1-31 (with L. Angeloni).
Existence of equilibria for economies with externalities and a measure space of consumers, Economic Theory, 26 (2005) 397-421(with Mihaela Topuzu).
Fixed-point like theorems on subspaces, Fixed Point Theory and Applications, 3 (2004) 159-171 (avec Philippe Bich).
Equilibrium Theory with a Measure Space of Possibly Satiated Consumers, Journal of Mathematical Economics, 39 (2003) 175-196 (with M. Topuzu and A. Yildiz).
Arbitrage and Price Revelation with Asymmetric Information and Incomplete Markets, Journal of Mathematical Economics, 38 4 (2002) 393--410 (with L. De Boisdeffre).
Fatou’s Lemma for Gelfand Integrable Mappings, Positivity, 6 3 (2002) 297 –315 (with J.-P. Medecin).
Euler Characterictic and Fixed-Point Theorems, Positivity, 6 3 (2002) 243 –260.
Economic Equilibrium: Optimality and Price Decentralization, Positivity, 6 3 (2002) 205-241 (with C.-D. Aliprantis, and R. Tourky).
Introduction to the Special Issue on Mathematical Economics, Positivity, 6 3 (2002) 201--204 (with C.-D. Aliprantis, and R. Tourky).
Existence of generalized equilibria of correspondences, Nonlinear Analysis, 44 5 (2001) 555--573 (with M.-O. Czarnecki).
Approximation methods in equilibrium and fixed-point theory: proximally nondegenerate sets," Proceedings 9thBelgian-French-German Conference on Optimization," Namur, Lecture Notes in Economics and Mathematical Sciences, Springer Verlag, Eds. V.H. Nguyen, J.-J. Strodiot and P. Tossings, (2000) 91--110 (with M.-O. Czarnecki).
Necessary and sufficient conditions for the existence of (generalized) equilibria on a compact epi-Lipschitzian domain," in Communications on Applied Nonlinear Analysis, 7 (2000) 21--53 (with M.-O. Czarnecki).
Smooth representations of epi-Lipschitzian subsets of Rn, Nonlinear Analysis, 37 (1999) 139--160 (with M.-O. Czarnecki).Smooth approximations of epi-Lipschizian sets, SIAM Journal of Control and Optimization, 37 (1999) 710--730 (with M.-O. Czarnecki).
Méthodes d’approximation en théorie du point-fixe et de l’équilibre, Comptes Rendus de l'Académie des Sciences de Paris, 327 Série I, (1998) 917--922 (with M.-O. Czarnecki).
Approximation normale de sous-ensembles épi-lipschitziens de Rn, Comptes Rendus de l'Académie des Sciences de Paris, 325 Série I, (1997) 538--588 (with M.-O. Czarnecki).
Représentation lisse de sous-ensembles épi-lipschitziens de Rn, Comptes Rendus de l'Académie des Sciences de Paris, 325 Série I, (1997) 475--480 (with M.-O. Czarnecki).
Mathematics and Economics, in First European Congress of Mathematics, Vol. III, A. Joseph, F. Mignot, F. Murat, B. Prum, R. Rentschler (eds.), Progress in Mathematics, Birkhauser Verlag (1994) 431--450.
Equilibrium Theory with Increasing Returns: the Existence Problem, General Equilibrium Theory and Applications, W. Barnett et al (eds.), International Symposia in Economic Theory and Econometrics, Cambridge University Press, (1991) 65--82 (with J.-M. Bonnisseau).
Existence of marginal cost pricing equilibria: the nonsmooth case, International Economic Review, 31 (1990) 685--708 (with J.-M. Bonnisseau).
Fixed-point theorems and Morse's lemma for Lipschitzian functions, Journal of Mathematical Analysis and Applications, 146 (1990) 318--332 (with J.-M. Bonnisseau).
Existence of marginal cost pricing equilibria in an economy with several nonconvex firms, Econometrica 58 (1990) 661-682 (with J.-M. Bonnisseau).
La théorie de l'équilibre général de Arrow-Debreu : présentation et extension au cadre non-convexe, Annales de l'Institut Henri Poincaré : Analyse Nonlinéaire (1990) 161-181.
Walrasian exchange processes, in Economic Decision-Making: Games, Econometrics and Optimisation, Contributions in Honor of Jacques H. Drèze, J. J. Gabszewicz et al. (eds.), North Holland, Amsterdam (1990) 3--13 (with Paul Champsaur). (PdF)