Research Interests: Mathematical economics, Market and mechanism design, Matching theory, Game theory, Law and economics, Eminent domain, Agglomeration, Economics of entry

Affiliations: Becker Friedman Institute for Research in Economics (2011-present), Human Capital and Economic Opportunity Working Group (2011-present), Harvard Program for Research in Markets and Organizations (PRIMO) (2011), Harvard Business School (2009-2011), Harvard EconCS Group (2009-2011), John M. Olin Center for Law, Economics, and Business (2010-2011), Harvard University Department of Economics (2009-2011), Harvard Institute for Quantitative Social Science (2008-2011)

Fellowships: AMS-Simons Travel Grant (2011-2013), Terence M. Considine Fellowship in Law and Economics (2010-2011), Yahoo! Key Scientific Challenges Program Fellowship (2010-2011), National Science Foundation Graduate Research Fellowship (2009-2011), Harvard Real Estate Academic Initiative Faculty Grant [with E. G. Weyl] (2009-2011), Harvard Institute for Quantitative Social Science Travel Grant (2010), Danielan Fund Research and Travel Grant (2010), National Defense Science & Engineering Graduate Fellowship (declined, 2009), Harvard Institute for Quantitative Social Science Summer Research Scholars Program Fellowship (2008), Harvard College Program for Research in Science and Engineering Program Assistant Fellowship (2008)

Awards: Third Place in Romanian Institute of Science and Technology "Best PhD Thesis in Computational Game Theory" Competition (2011), Yahoo! Key Scientific Challenges Program Selectee (2010), AMS-MAA-SIAM Frank and Brennie Morgan Prize for Outstanding Research in Mathematics by an Undergraduate Student (2010), George Caspar Homans Prize (2009)

Market Design Papers:

• Holdout in the Assembly of Complements: A Problem for Market Design [with E. G. Weyl]. (Forthcoming, American Economic Review Papers & Proceedings.)
• Multilateral Matching [with J. W. Hatfield]. (Working paper.) (Extended abstract, Proceedings of the 12th ACM Conference on Electronic Commerce, (2011), pp. 337-338.)
• Stability and Competitive Equilibrium in Trading Networks [with J. W. Hatfield, A. Nichifor, M. Ostrovsky, and A. Westkamp]. (Working paper.)
• Vacancies in Supply Chain Networks [with J. W. Hatfield]. (Working paper.)
• To Groupon or Not to Groupon: The Profitability of Deep Discounts [with B. Edelman and S. Jaffe]. (Working paper.)
• Concordance among Holdouts [with E. G. Weyl]. (Working paper, online appendix.) (Software [designed by W. Weingarten].) (Extended abstract, Proceedings of the 12th ACM Conference on Electronic Commerce, (2011), pp. 219-220.)
• On the Correspondence of Contracts to Salaries in (Many-to-Many) Matching. (Forthcoming, Games and Economic Behavior.)
• Matching in Networks with Bilateral Contracts [with J. W. Hatfield]. (American Economic Journal: Microeconomics 4(1), (2012), pp. 176–208.) (Extended abstract, Proceedings of the 11th ACM Conference on Electronic Commerce, (2010), pp. 119-120.) (Preprint.)
• Contract Design and Stability in Matching Markets [with J. W. Hatfield]. (Working paper.)
• Testing Substitutability [with J. W. Hatfield and N. Immorlica]. (Forthcoming, Games and Economic Behavior.)
• Course Allocation by Proxy Auction [with M. Ruberry and J. Ullman]. (Short paper, Proceedings of the 6th Workshop on Internet & Network Economics, (2010), pp. 551-558.) (Full version.)
• Matching with Preferences over Colleagues Solves Classical Matching. (Games and Economic Behavior 68(2), (2010), pp. 773-780.) (Preprint.)
• Sticky Content and the Structure of the Commercial Web. (Working paper, NetEcon'09 version.)
• Dynamic Position Auctions with Consumer Search. (Proceedings of The 5th International Conference on Algorithmic Aspects in Information and Management (AAIM), Lecture Notes in Computer Science 5564, (2009), pp. 240-250. {Zbl pre05574794.}) (Preprint.)
• Policy Comments:
  • Re: Advance Notice of Proposed Rulemaking: Human Subjects Research Protections: Enhancing Protections for Research Subjects and Reducing Burden, Delay, and Ambiguity for Investigators, Docket ID number HHS-OPHS–2011–0005 [with S. Vadhan, D. Abrams, M. Altman, C. Dwork, P. Kominers, H. R. Lewis, T. Moran, G. Rothblum, and J. Ullman].
  • Comment on the NRMP's "Supplemental Offer and Acceptance Program" Proposed to Replace the Post-Match Scramble [with P. A. Coles, C. R. Featherstone, J. W. Hatfield, F. Kojima, M. Niederle, P. A. Pathak, and A. E. Roth].

Game Theory Papers:

• Repeated Games with Observation Lags [with D. Fudenberg and Y. Ishii]. (Working paper available upon request.)
• Information Can Wreck Cooperation: A Counterpoint to Kandori (1992) [with Y. Kamada]. (Economics Letters 107(2), (2010), pp. 112-114.) (Preprint.)

Econometric Theory Papers:

• Discrete Choice Cannot Generate Demand that is Additively Separable in Own Price [with S. Jaffe]. (Forthcoming, Economics Letters.) (Preprint.)

Industrial Agglomeration Papers:

• Agglomerative Forces and Cluster Shapes [with W. R. Kerr]. (Working paper.)
• A Concentration-Based Index of Industrial Agglomeration [with B. Harrison]. (Working paper available upon request.)
• Measuring Agglomeration. (Unpublished expository paper.)

Law and Economics Papers:

• Second-order Critical Loss Analysis [with C. Shapiro]. (In preparation.)
• Salary Erosion and Federal Judicial Resignation. (Working paper, first revision.)

Research Assistanceships:

• Edward L. Glaeser, Harvard University Department of Economics and Kennedy School, (2007-2009)
• William R. Kerr, Harvard Business School, (2008-2009)
• Andrei Shleifer, Harvard University Department of Economics, (2008)
• Susan Athey, Harvard University Department of Economics, (2008)

Collaborators: David Abrams, Micah Altman, Peter A. Coles, Cynthia Dwork, Benjamin Edelman, Clayton R. Featherstone, Drew Fudenberg, Brett Harrison, John William Hatfield, Nicole Immorlica, Yuhta Ishii, Sonia Jaffe, Yuichiro Kamada, William R. Kerr, Fuhito Kojima, Harry R. Lewis, Tal Moran, Alexandru Nichifor, Muriel Niederle, Michael Ostrovsky, Parag A. Pathak, Alvin E. Roth, Guy Rothblum, Mike Ruberry, Carl Shapiro, Jonathan Ullman, Salil Vadhan, William Weingarten, Alexander Westkamp, E. Glen Weyl