Isa Hafalir's academic webpage

Curriculum Vitae

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 An interview on YouTube            A Turkish book I've written: Münferit

Publications 

Tie-breaking and Efficiency in the Laboratory School Choice (with Wonki Jo Cho and Wooyoung Lim), Journal of Economic Theory, 205, (2022), 105546 (Online Appendix), (presentation available here)

Call Auctions with Contingent Orders (with Serkan İmişiker), Games, 13(5), (2022), 61

Parallel Innovation Contests (with Ersin Korpeoglu and Gizem Korpeoglu), Operations Research, 70 (3), (2022): 1506-1530 Online Appendix (presentation available here) This article has received 2nd prize at INFORMS TIMES Best Working Paper Award Competition, 2018 and was featured as INFORMS TIMES paper of the month in March 2023.  

Interdistrict School Choice: A Theory of School Assignment (with M. Bumin Yenmez and Fuhito Kojima), Journal of Economic Theory, 201, (2022), 105441

Discriminatory Auctions with Resale (with Musab Kurnaz), Economic Theory Bulletin, 7(2), (2019), 173-189. Online Appendix

College Admissions with Entrance Exams: Centralized versus Decentralized (with Rustamdjan Hakimov, Dorothea Kübler and Morimitsu Kurino), Journal of Economic Theory, 176, (2018), 886-934. Online Appendices, 1 , 2 , 3 .

Expertise in Online Markets (with Stelios Despotakis, R. Ravi and Amin Sayedi), Management Science, 63, (2017), 3895-3910. Online Appendix

Matching with Aggregate Externalities (with James Fisher), Mathematical Social Sciences, 81, (2016), 1-7.

Welfare Maximizing Assignment of Agents to Hierarchical Positions (with Antonio Miralles), Journal of Mathematical Economics, 61, (2015), 253-270.

Auctions versus Negotiated Sale: Evidence from Real Estate Sales (with Yueng Leng Chow and Abdullah Yavas), Real Estate Economics, 43, (2015), 432-470.

Core Deviation Minimizing Auctions (with Hadi Yektas), International Journal of Game Theory, 44, (2015), 367-376. Online Appendix

School Choice with Controlled Choice Constraints: Hard Bounds versus Soft Bounds (with Lars Ehlers, M. Bumin Yenmez and Muhammed A. Yildirim), Journal of Economic Theory, 153, (2014), 648-683.

Effective Affirmative Action in School Choice (with M. Bumin Yenmez and Muhammed A. Yildirim),  Theoretical Economics, 8, (2013), 325-363. (A note on the definition of stability) This article was the winner of the 2011 Lave-Weil prize at Tepper School of Business.

A Near Pareto Optimal Auction with Budget Constraints (with R. Ravi and Amin Sayedi), Games and Economic Behavior, 74, (2012), 699-708.  An earlier and more comprehensive version is available here

Selling Goods of Unknown Quality: Forward versus Spot Auctions (with Hadi Yektas), Review of Economic Design, 15 (2011), 245-256.

Revenue and Efficiency Effects of Resale in First-Price Auctions (with Vijay Krishna), Journal of Mathematical Economics, 45 (2009), 589-602.

Stability of Marriage with Externalities, International Journal of Game Theory, 37 (2008), 353-370.

Asymmetric Auctions with Resale (with Vijay Krishna), American Economic Review, 98 (2008), 87-112 Online Appendix

Efficiency in Coalition Games with Externalities Games and Economic Behavior, 61 (2007), 242-258.

Note: All articles are the sole copyright of the respective publishers. Materials are provided for educational use only. Downloading of materials constitutes an agreement that the materials are for personal use only.

Articles in Conference Proceedings

Extended Abstract: Efficient Market Design with Distributional Objectives (with Fuhito Kojima and Bumin Yenmez),  Proceedings of the 24th ACM Conference on Economics and Computation (EC’23), (2023), 849.

Working Papers

Optimal Top-n Policy (with Kentaro Tomoeda and Siqi Pan)

A Generalized Principle-Agent Model with Lying Costs (with Gordon Menzies)

Design on Matroids: Diversity vs. Meritocracy (with Fuhito Kojima, Bumin Yenmez, and Koji Yokote) This article has received the best theory track paper award at the 2023 ACM conference on Equity and Access in Algorithms, Mechanisms, and Optimization (EAAMO)  (Presentation by Bumin is avaliable here)

Efficient Market Design with Distributional Objectives (with Fuhito Kojima and Bumin Yenmez)  presentation (see kudos for more information)

Representation Theorems for Path-Independent Choice Rules (with Fuhito Kojima, Bumin Yenmez, and Koji Yokote)  (R&R at the American Economic Review)

Bayesian School Choice: Welfare Comparison of Immediate Acceptance and Deferred Acceptance Mechanisms (with Ethem Akyol and Antonio Miralles) presentation

When Speed is of Essence: Perishable Goods Auctions (with Onur Kesten, Katerina Sherstyuk, and Cong Tao) presentation

Istanbul Flower Auction: The Need for Speed (with Donglai Luo and Cong Tao)

Work-in-Progress

Expertise, Signaling, and Learning in Fish Auctions (with Ali Vergili)

Nonlinear Pricing with Resale (with Donglai Luo and Hadi Yektas)

Competitive Equilibrium and a Dynamic Auction for Allocation with Priorities

Policy Impact and Engagement

My collaborators (Fuhito Kojima, Bumin Yenmez, and Muhammed Yildirim) and I were awarded an ARC Discovery Project grant, “Broadening Choice and Increasing Diversity in Public Schools” (2024-2027)

I was interviewed for an ABC article: "The auction theory playing out each weekend in Australia's property market"  (link)

I was hosted in the program "Breakfast with Joanne Shoebridge" at ABC North Coast radio on the potential benefits of using "school choice" in public school assignments in Australia  (link, between 2:39:00 to 2:57:00)

I have written a The Conversation article, mainly based on Hafalir, Kojima, and Yenmez (2022). It can be reached here.

I was consulted in the selection of the voting system that was used in "My Community Project" in NSW (link)

Reserves that we introduced in Hafalir, Yenmez, and Yildirim (2013) have been implemented for student assignment in New York City (discussed here), in Chile (discussed in this paper), and in Israel (discussed in this paper)

Food Agility PhD Scholarship Grant (2020-2023) “Impact of the introduction of online auctions on profitability within the seafood industry” enabled us to explore online auctions in the seafood industry.

Teaching

At UTS

Course Outline for Microeconomics 1 (PhD)

Course outline for Economics For Management (Masters)

Course outline for Market Design (Undergraduate)

Course outline for Market Design (PhD)

Course outline for Mechanism Design (Master in Behavioural Economics)

At CMU

Syllabus for Microeconomics 1 (PhD)

Syllabus for Game Theory for Economists (Undergraduate)

Syllabus for Auctions and Markets (Undergraduate)

Syllabus for Game Theory and Applications (PhD)

Syllabus for Market Design (PhD)

Syllabus for Market Design (MBA)