Greatest Hits

Trust at Scale: The Economic Limits of Cryptocurrencies and Blockchains

Quarterly Journal of Economics, (2025): 140, no.1, 1-62.
Lead Article
Sources for Appendix C: 51% Attacks, Crypto Thefts and Crypto Collapses to Date
June 2018 version, NBER Working Paper No. 24717
Harvard Harris Lecture: The Economics of Cryptocurrencies (November 2022)
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R<1 as an Economic Constraint

Review of Economic Design (Special Issue: The Economics of Epidemics), Forthcoming.
Lead Article
April 1st 2020 draft: “R<1 as an Economic Constraint: Can we 'Expand the Frontier' in the Fight Against Covid-19?"
Slides, April 9th 2020 “IGM Conference on the Covid-19 Crisis”
Nov 2020 NBER Working Paper No. w28093
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A Theory of Stock Exchange Competition and Innovation: Will the Market Fix the Market?

Coauthors: Robin Lee and John Shim
Journal of Political Economy, (2024): 132, no. 4, 1209-1246.
AEA/AFA Joint Luncheon Address, Will the Market Fix the Market?
Transcript, Will the Market Fix the Market?
Slides, Will the Market Fix the Market?
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An Economic Framework for Vaccine Prioritization

Coauthors: Mohammad Akbarpour, Piotr Dworczak, and Scott Duke Kominers
The Quarterly Journal of Economics, (2024): 139, no.1, 359-417.
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Flow Trading

Coauthors: Peter Cramton, Albert S Kyle, Jeongmin Lee, and David Malec
American Economic Review, Revise-and-Resubmit.
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Primary-Market Auctions for Event Tickets: Eliminating the Rents of “Bob the Broker”?

Coauthors: Aditya Bhave
American Economic Journal: Microeconomics, (2023): 15, No. 1, 142-170.
Why Is the Live-Event Ticket Market So Screwed Up?
Slides as PDF
FTC Keynote Talk, How to Fix the Market for Event Tickets
[PDF] [Slides] [All Related Material]

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Quantifying the High-Frequency Trading “Arms Race”

Coauthors: Matteo Aquilina and Peter O'Neill
The Quarterly Journal of Economics, (2022): 137, no. 1, 493-564.
Winner -- WFA 2020 Two Sigma Award for Best Paper on Investment Management
Data and Code Appendix
Exchange Message Data Codebook
FCA Occasional Paper landing page with brief summary and links
[PDF] [Slides] [All Related Material]

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Market Design to Accelerate Covid-19 Vaccine Supply

Coauthors: Juan Camilo Castillo, Amrita Ahuja, Susan Athey, Arthur Baker, Tasneem Chipty, Rachel Glennerster, Scott Duke Kominers, Michael Kremer, Greg Larson, Jean Lee, Canice Prendergast, Christopher M Snyder, Alex Tabarrok, Brandon Joel Tan, and Witold Więcek
Science, (2021): 68, no.2, 1107-1109.
Supplementary Materials
Bigger Is Better When It Comes to Vaccine Production
How Can More Covid-19 Vaccines be Made Available?
Management Conference ’21: Perspectives on COVID-19
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Strategy-proofness in the Large

Coauthors: Eduardo M Azevedo
Review of Economic Studies, (2019): 86, no. 1, 81-116.
Seminar Slides (Nov 2012)
ACM EC Panel Discussion Slides (June 2018)
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The High-Frequency Trading Arms Race: Frequent Batch Auctions as a Market Design Response

Coauthors: Peter Cramton and John Shim
The Quarterly Journal of Economics, (2015): 130, no. 4, 1547-1621.
Lead Article
Winner- 2014 AQR Insight Award
Winner- 2015 Utah WFC Best Paper Award
SEC Chair White Speech
New York Attorney General Speech
Seminar Slides (Sept 2015)
Policy Audience Slides (FCA, Feb 2016)
AEA/AFA Joint Luncheon Address, Will the Market Fix the Market?
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Do Firms Underinvest in Long-Term Research? Evidence from Cancer Clinical Trials

Coauthors: Benjamin J Roin and Heidi Williams
American Economic Review, (2015): 105, no. 7, 2044-2085.
Winner- the Kauffman/iHEA Award for Health Care Entrepreneurship and Innovation Research
Winner- the Arrow Award for "best paper published in health economics" in 2015
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Designing Random Allocation Mechanisms: Theory and Applications

Coauthors: Yeon-Koo Che, Fuhito Kojima, and Paul Milgrom
American Economic Review, (2013): 103, no. 2, 585-623.
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The Multi-Unit Assignment Problem: Theory and Evidence from Course Allocation at Harvard

Coauthors: Estelle Cantillon
American Economic Review, (2012): 102, no. 5, 2237-2271.
Slides, Jerusalem Summer School (Summer 2014)
Slides, Columbia Seminar (Nov 2009)
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The Combinatorial Assignment Problem: Approximate Competitive Equilibrium from Equal Incomes

Journal of Political Economy, (2011): 119, no. 6, 1061-1103.
Wikipedia entry: Course allocation
Wikipedia entry: Maximin share
Wharton “Course Match” website
Cognomos
Slides, Jerusalem Summer School (Summer 2014)
Job Market Talk Slides (Feb 2009)
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