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Professor Isa Hafalir

Biography

Isa has joined the Economics Discipline Group in 2017. He has received his PhD in economics from Penn State University in 2007 and has held academic positions at Carnegie Mellon University.

Professional

Associate Editor, Review of Economic Design, June 2013 - Present
Professor, Economics Discipline Group
ECONOMICS, INDUSTRIAL ENGINEERING, SOCIAL SCIENCES
 

Research Interests

Isa's research interests are in the areas of microeconomic theory and game theory in general, and in market design, mechanism design, auction theory and matching theory in particular.

Journal articles

Fisher, J.C.D. & Hafalir, I.E. 2016, 'Matching with aggregate externalities', Mathematical Social Sciences, vol. 81, pp. 1-7.
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© 2016. Certain aggregate externalities, like those due to knowledge and public goods, do not change very much in response to changes in two individuals' actions. Thus, individuals rationally regard the level of the externality as fixed in their negotiations with each other. We leverage this observation to develop a general framework for the existence of stable matchings in moderately sized one-to-one matching games, and we characterize intuitive restrictions on preferences that are sufficient for existence.
Despotakis, S., Hafalir, I., Ravi, R. & Sayedi, A. 2016, 'Expertise in Online Markets', Management Science.
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Hafalir, I.E. & Yekta, H. 2015, 'Core deviation minimizing auctions', International Journal of Game Theory, vol. 44, no. 2, pp. 367-376.
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Chow, Y.L., Hafalir, I.E. & Yavas, A. 2015, 'Auction versus Negotiated Sale: Evidence from Real Estate Sales', Real Estate Economics, vol. 43, no. 2, pp. 432-470.
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Hafalir, I. & Miralles, A. 2015, 'Welfare-maximizing assignment of agents to hierarchical positions', Journal of Mathematical Economics, vol. 61, pp. 253-270.
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Ehlers, L., Hafalir, I.E., Yenmez, M.B. & Yildirim, M.A. 2014, 'School choice with controlled choice constraints: Hard bounds versus soft bounds', Journal of Economic Theory, vol. 153, pp. 648-683.
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Hafalir, I.E., Yenmez, M.B. & Yildirim, M.A. 2013, 'Effective affirmative action in school choice', Theoretical Economics, vol. 8, no. 2, pp. 325-363.
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Hafalir, I.E., Ravi, R. & Sayedi, A. 2012, 'A near Pareto optimal auction with budget constraints', Games and Economic Behavior, vol. 74, no. 2, pp. 699-708.
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Hafalir, I.E. & Yekta, H. 2011, 'Selling goods of unknown quality: forward versus spot auctions', Review of Economic Design, vol. 15, no. 3, pp. 245-256.
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Hafalir, I. & Krishna, V. 2009, 'Revenue and efficiency effects of resale in first-price auctions', Journal of Mathematical Economics, vol. 45, no. 9-10, pp. 589-602.
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Hafalir, I. & Krishna, V. 2008, 'Asymmetric Auctions with Resale', American Economic Review, vol. 98, no. 1, pp. 87-112.
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Hafalir, I.E. 2007, 'Efficiency in coalition games with externalities', Games and Economic Behavior, vol. 61, no. 2, pp. 242-258.
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Hafalir, I.E. 2006, 'Stability of Marriage with Externalities', SSRN Electronic Journal.
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