Department of Economics
New York University
19 West 4th Street, Room 605
New York, NY 10003
B.Sc., Economics, Magna Cum Laude, Middle East Technical University, 1990
B.Sc., Mathematics, Summa Cum Laude, Middle East Technical University, 1990
Ph.D., Economics, Cornell University, 1995.
Ph.D., Mathematics, Cornell University, 1998.
Professor at New York University [2005-present]
Associated Professor at Courant Institute of Mathematical Sciences, NYU [2013-present]
Visiting Professor at Universite Bocconi, Italy [2013-2014]
Associate Professor at New York University [2001-2005]
Visiting Professor at Universidad Pompeu Fabra, Spain [2004 spring]
Visiting Professor at Koc University, Turkey [2003 fall]
Visiting Professor at Princeton University [1999 fall]
Assistant Professor at New York University [1995-2000]
Decision Theory, Game Theory, Order Theory, Nonlinear Analysis
Theory of Individual Preferences, Choice Theory, Welfare Economics, Ordered Algebraic/Topological Systems, Fixed Point Theory, Variational Analysis
1. Believing in Forecasts, Uncertainty, and Rational Expectations (with A. Savochkin) Economic Theory 74 (2022), 947-971.
2. Indifference, Indecisiveness, Experimentation and Stochastic Choice (with G. Tserenjigmid), Theoretical Economics 17 (2022), 651-686.
3. The Rational Core (with S. Cerreai-Vioglio) Theoretical Economics forthcoming.
4. Coalitional Expected Utility Theory (with K. Hara and G. Riella), Econometrica 87 (2019), 933-980.
5. A Comprehensive Approach to Revealed Preference Theory (with H. Nishimura and J. Quah), American Economic Review 107 (2017), 1239-1263.
6. Utility Representation of an Incomplete and Nontransitive Preference Relation (with H. Nishimura), Journal of Economic Theory 166 (2016), 164-185.
7. Revealed (P)Reference Theory (with P. Ortoleva and G. Riella), American Economic Review 105 (2015), 299-321.
8. Non-Existence of Continuous Choice Functions (with H. Nishimura), Journal of Economic Theory 153 (2014), 376-391.
9. A Canonical Model of Choice with Initial Endowments (with Y. Masatlioglu), Review of Economic Studies 81 (2014), 851-883.
10. Incomplete Preferences under Uncertainty: Indecisiveness in Beliefs vs. Tastes, (with P. Ortoleva and G. Riella), Econometrica 80 (2012), 1791-1808.
11. On the Multi-Utility Representation of Preference Relations (with O. Evren), Journal of Mathematical Economics 47 (2011), 554-563.
12. Nash Implementation without No-Veto Power (with J-P. Benoit), Games and Economic Behavior 64 (2008), 51-67.
13. A Theory of (Relative) Discounting (with Y. Masatlioglu), Journal of Economic Theory, 137 (2008), 214-245.
14. Delay Aversion (with J-P. Benoit), Theoretical Economics, 2 (2007), 71-113.
15. On Combining Implementable Social Choice Rules (with J-P. Benoit and R. Sanver), Games and Economic Behavior 60 (2007), 20-30.
16. Voting over Income Taxation (with O. Carbonell), Journal of Economic Theory 134 (2007), 249-286.
17. Indifference or Indecisiveness? Choice Theoretic Foundations of Incomplete Preferences (with K. Eliaz), Games and Economic Behavior 56 (2006), 61-86.
18. Maskin’s Theorem with Limited Veto Power (with J-P. Benoit), Games and Economic Behavior 55 (2006), 331-339.
19. Rational Choice with Status-Quo Bias (with Y. Masatlioglu), Journal of Economic Theory 121 (2005), 1-29.
20. Expected Utility Theory without the Completeness Axiom (with J. Dubra and F. Maccheroni) Journal of Economic Theory, 115 (2004), 118-133.
21. Strategic Delegation by Unobservable Contracts (with L. Koçkesen), Review of Economic Studies 71 (2004), 397-424.
22. Delegation and Polarization of Platforms in Political Competition (with R. Fauli-Oller and I. Ortuno-Ortin), Economic Theory 22 (2003), 289-309.
23. A Model of Procedural Decision Making in the Presence of Risk (with J. Dubra), International Economic Review 43 (2002), 1053-1080.
24. Utility Representation of an Incomplete Preference Relation, Journal of Economic Theory 104 (2002), 429-449.
25. Bargaining, Interdependence and the Rationality of Fair Division (with G. Lopomo), RAND Journal of Economics 32 (2001), 263-283.
26. Social Mobility and the Demand for Redistribution: the POUM Hypothesis (with R. Bénabou), Quarterly Journal of Economics 116 (2001), 447-487.
27. On the Evolution of Individualistic Preferences: An Incomplete Information Scenario (with F. Vega-Redondo), Journal of Economic Theory 97 (2001), 231-254.
28. The Choquet Bargaining Solutions (with L. Zhou), Games and Economic Behavior 33 (2000), 249-264.
29. The Strategic Advantage of Negatively Interdependent Preferences (with L. Koçkesen and R. Sethi), Journal of Economic Theory 92 (2000), 274-299.
30. Negatively Interdependent Preferences (with L. Koçkesen), Social Choice and Welfare 17 (2000), 533-558.
31. Evolution of Interdependent Preferences in Aggregative Games (with L. Koçkesen and R. Sethi), Games and Economic Behavior 31 (2000), 303-310.
32. Lorenz Dominance and the Variance of Logarithms (with J. Foster), Econometrica 67 (1999), 901-907.
33. Revealed Group Preferences on Non-convex Choice Problems (with L. Zhou), Economic Theory 13 (1999), 671-687.
34. Measuring Movement of Incomes (with G. Fields), Economica 66 (1999), 455-471.
35. Inequality Averse Collective Choice, Journal of Mathematical Economics 30 (1998), 301-321.
36. On Opportunity Inequality Measurement, Journal of Economic Theory 77 (1997), 300-329.
37. A Note on the Existence of Progressive Tax Structures, Social Choice and Welfare 14 (1997), 527-543.
38. On the Equitability of Progressive Income Taxation (with T. Mitra), Journal of Economic Theory 73 (1997), 316-334.
39. The Meaning and the Measurement of Income Mobility (with G. Fields), Journal of Economic Theory 71 (1996), 349-377.
40. Personal Income Taxation and the Principle of Equal Sacrifice Revisited (with T. Mitra), International Economic Review 37 (1996), 925-948.
41. Fuzzy Income Inequality Measurement, Economic Theory 7 (1996), 513-530.
42. On the Principle of Equal Sacrifice in Income Taxation, Journal of Public Economics 58 (1995), 453-468.
Mathematics
1. Order-Preserving Extensions of Lipschitz Maps, Journal of the Australian Mathematical Society, forthcoming.
2. A Class of Dissimilarity Semimetrics for Preference Relations (with H. Nishimura), Mathematics of Operations Research, forthcoming.
3. Embedding of Topological Posets in Hyperspaces, (with J. Beer), Journal of Convex Analysis 30 (2023), 515-540.
4. Lipschitz Bernoulli Utility, (with N. Weaver), Mathematics of Operations Research 48 (2023), 728-747.
5. Lp-Norm Majorization, (with T. Mitra), Pure and Applied Functional Analysis 7 (2022), 2119-145.
6. Fully Preorderable Groups, (with G. Riella), Order 38 (2021), 127-142.
7. Topological Closure of a Translation Invariant Preorder (with G. Riella), Mathematics of Operations Research, 39 (2014), 1539-1551.
8. Optimal Solutions to Variational Inequalities on Banach Lattices (with J. Li), Journal of Mathematical Analysis and Applications, 388 (2012), 1157-1165.
9. Solvability of Variational Inequalities on Hilbert Lattices (with H. Nishimura), Mathematics of Operations Research, 388 (2012), 608-625.
10. Fixed Set Theorems of Krasnoselkii-type, Proceedings of the American Mathematical Society, 137 (2008), 511-518.
11. Fixed Set Theory of Closed Correspondences with Applications to Self-Similarity and Games, Nonlinear Analysis, 56 (2004), 309-330.
12. Nonzero Fixed Points of Power-Bounded Linear Operators, Proceedings of the American Mathematical Society, 131 (2003), 1539-1551.
13. On the Approximation of Fuzzy Preferences by Exact Relations, Fuzzy Sets and Systems, 67 (1994), 173-179.
Invited Articles
Progressive and Regressive Taxation,” (with. W. Vickrey) The New Palgrave Dictionary of Economics, edited by S. Durlauf and L. Blume, 2008.
The Measurement of Income Inequality: An Introduction to the Literature,” (with G. Fields) in the Handbook of Income Inequality Measurement, edited by J. Silber, Boston: Kluwer, 1999.
Books
Real Analysis with Economic Applications. Princeton: Princeton University Press, 2007.
Articles
Mobility as Progressivity: Ranking Income Processes According to Equality of Opportunity,” (with R. Bénabou), NBER Working Paper 8431.
Best Complete Approximations of Preference Relations,” (with H. Nishimura)
Measuring Stochastic Rationality,” (with G. Tserenjigmid)
Bewley meet Gilboa-Schmeidler: A Theory of Knightian Uncertainty Aversion,” (with J-H. Faro and G. Riella).
Theory of Product Differentiation in the Presence of the Attraction Effect,” (with P. Ortoleva and G. Riella).
Inferential Choice Theory (with N. Balakrishnan and P. Ortoleva).
Unsolvable Vandermonde Systems (with S. Gunturk).
On the Topological Structure of the Upper Sets of the Modulus of an Analytic Function (with S. Gunturk).
Hyperspace Groupoids induced by Topological Riesz Groups (with G. Beer).
Strategic Boundedly Rational Choice Theory I: Normal-Form Games (with P. Ortoleva and G. Riella).
Strategic Boundedly Rational Choice Theory II: Extensive-Form Games (with P. Ortoleva and G. Riella)
Continuous Galois Connections
Abstract Integration of Set-Valued Functions (with S. Cerreai-Vioglio).
Stochastic Ordering of Random Sets (with S. Cerreai-Vioglio).
Ordinal Metric Equivalence (with M. Richter).
Preference Structures (with H. Nishimura).
Top-Cycles and Revealed Preference Structures (with O. Evren and H. Nishimura).
Decision Making under Subjective Risk: Toward a General Theory of Pessimism (with A. Gumen and A. Savochkin).
Books
Probability Theory with Economic Applications (forthcoming by Princeton University Press).
Order Theory and its Applications.
Point-Set Topology.
Nonlinear Analysis.
Keynote Speaker for the 3rd International Conference on Set-Valued Variational Analysis and Set Optimization, September 19-23, Vienna, Austria.
Invited Speaker for the 2016 Asian Meeting of the Econometric Society, August 11-13, Kyoto, Japan.
Associate Editor for the Journal of Economic Theory (2008 – 2013)
Associate Editor for the Economic Theory (2002 – 2007)
Associate Editor for the Review of Economic Design (2000 – 2010)
Member of the Center for Economic Design, Bogazici University, Istanbul.
Referee for American Economic Review, American Mathematical Monthly, Games and Economic Behavior, Econometrica, Economic Theory, International Economic Review, Journal of Economic Theory, Journal of Public Economics, Journal of Public Economic Theory, Mathematical Social Sciences, Nonlinear Analysis, National Science Foundation, Proceedings of AMS, Quarterly Journal of Economics, Review of Economic Design, Review of Economic Studies, Review of Income and Wealth, Social Choice and Welfare, Transactions of AMS.
Member of American Mathematical Society, American Economic Association, Econometric Society, Mathematical Association of America, Society for the Promotion of Economic Theory, Society for the Advancement of Economic Theory, Society for Social Choice and Welfare
Member of the organization committee for the 4th International Meeting of the Society for Social Choice and Welfare, June 23-25, 1998, Vancouver, Canada.
Chair of the organization committee for SED2002: Conference on Economic Design, 2002, July 6-9, New York, USA.
Chair of the placement committee, New York University, 2002 and 2006-present.
Member of the program committee for 2004 North American Summer Meeting of the Econometric Society, June 17-20, 2004, Brown University.
Keynote Speaker for ASSET (Associacion Sudeuropa de Economica Teorica) 2003 Annual Conference, October 30-31, Ankara, Turkey.
Plenary Speaker for the 18th International Conference on Game Theory, July 9-13, Stony Brook, USA.
Invited Speaker for the 2007 Latin American Meeting of the Econometric Society, October 4-6, Bogota, Colombia.