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Publications

Publications

Filter Results: (8) Arrow Down
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  • All HBS Web  (8)
    • Research  (8)
  • Faculty Publications  (8)

Show Results For

  • All HBS Web  (8)
    • Research  (8)
  • Faculty Publications  (8)
Page 1 of 8 Results
  • 2020
  • Working Paper

Collusion in Brokered Markets

By: John William Hatfield, Scott Duke Kominers and Richard Lowery
The U.S. residential real estate agency market presents a puzzle for economic theory: commissions on real estate transactions have remained high for decades even though entry is frequent and costs are low. We model the real estate agency market, and other brokered... View Details
Keywords: Real Estate; "Repeated Games"; Collusion; Antitrust; Brokered Markets; Game Theory; Real Estate Industry
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Hatfield, John William, Scott Duke Kominers, and Richard Lowery. "Collusion in Brokered Markets." Harvard Business School Working Paper, No. 20-023, September 2019. (Revised July 2020.)
  • 2019
  • Working Paper

Collusion in Markets with Syndication

By: John William Hatfield, Scott Duke Kominers, Richard Lowery and Jordan M. Barry
Many markets, including markets for IPOs and debt issuances, are syndicated: each winning bidder invites competitors to join its syndicate to complete production. Using repeated extensive form games, we show that collusion in syndicated markets may become easier as... View Details
Keywords: Collusion; Antitrust; IPO Underwriting; Syndication; "Repeated Games"
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Hatfield, John William, Scott Duke Kominers, Richard Lowery, and Jordan M. Barry. "Collusion in Markets with Syndication." Harvard Business School Working Paper, No. 18-009, July 2017. (Revised June 2019.)
  • Article

Delayed-Response Strategies in Repeated Games with Observation Lags

By: Drew Fudenberg, Yuhta Ishii and Scott Duke Kominers
We extend the folk theorem of repeated games to two settings in which players' information about others' play arrives with stochastic lags. In our first model, signals are almost-perfect if and when they do arrive, that is, each player either observes an almost-perfect... View Details
Keywords: "Repeated Games"; Folk Theorem; Private Monitoring; Observation Lag; Game Theory
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Fudenberg, Drew, Yuhta Ishii, and Scott Duke Kominers. "Delayed-Response Strategies in Repeated Games with Observation Lags." Journal of Economic Theory 150 (March 2014): 487–514.
  • October 2020
  • Article

Collusion in Markets with Syndication

By: John William Hatfield, Scott Duke Kominers, Richard Lowery and Jordan M. Barry
Markets for IPOs and debt issuances are syndicated, in the sense that a bidder who wins a contract may invite losing bidders to join a syndicate that together fulfills the contract. We show that in markets with syndication, standard intuitions from industrial... View Details
Keywords: Collusion; Antitrust; IPO Underwriting; Syndication; "Repeated Games"; Markets; Game Theory
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Hatfield, John William, Scott Duke Kominers, Richard Lowery, and Jordan M. Barry. "Collusion in Markets with Syndication." Journal of Political Economy 128, no. 10 (October 2020).
  • 2016
  • Working Paper

Collusion in Markets with Syndication

By: John William Hatfield, Scott Kominers and Richard Lowery
Markets for IPOs and debt issuances are syndicated, in the sense that a bidder who wins a contract may invite losing bidders to join a syndicate that together fulfills the contract. We show that in markets with syndication, standard intuitions from... View Details
Keywords: Collusion; Antitrust; IPO Underwriting; Syndication; "Repeated Games"
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Hatfield, John William, Scott Kominers, and Richard Lowery. "Collusion in Markets with Syndication." Working Paper, November 2016.
  • Article

Analyzing Scrip Systems

By: Kris Johnson, David Simchi-Levi and Peng Sun
Scrip systems provide a nonmonetary trade economy for exchange of resources. We model a scrip system as a stochastic game and study system design issues on selection rules to match potential trade partners over time. We show the optimality of one particular rule in... View Details
Keywords: "Repeated Games"; Stochastic Trust Game; Dynamic Program; P2P Lending; Scrip Systems; Artificial Currency; Non-monetary Trade Economies; Marketplace Matching; Currency; Operations; Game Theory
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Johnson, Kris, David Simchi-Levi, and Peng Sun. "Analyzing Scrip Systems." Operations Research 62, no. 3 (May–June 2014): 524–534.
  • June 2025
  • Article

Collusion in Brokered Markets

By: John William Hatfield, Scott Duke Kominers and Richard Lowery
High commissions in the U.S. residential real estate agency market present a puzzle for economic theory because brokerage is not a concentrated industry. We model brokered markets as a game in which agents post prices for customers and then choose which other agents to... View Details
Keywords: Real Estate Agents; Real Estate; Realtors; Broker Networks; Brokerage; Brokerage Commissions; "Brokerage Industry; Brokered Markets; Brokering; Brokers; Industrial Organization; Repeated Game Framework; "Repeated Games"; Collusion; Antitrust; Microeconomics; Market Design; Theory; Game Theory; Real Estate Industry
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Hatfield, John William, Scott Duke Kominers, and Richard Lowery. "Collusion in Brokered Markets." Journal of Finance 80, no. 3 (June 2025): 1417–1462.
  • March 2023
  • Article

Not from Concentrate: Collusion in Collaborative Industries

By: Jordan M. Barry, John William Hatfield, Scott Duke Kominers and Richard Lowery
The chief principle of antitrust law and theory is that reducing market concentration—having more, smaller firms instead of fewer, bigger ones—reduces anticompetitive behavior. We demonstrate that this principle is fundamentally incomplete.

In many... View Details
Keywords: Antitrust; Antitrust Law; Antitrust Theory; Law And Economics; Collusion; Collaboration; Collaborative Industries; Regulation; "Repeated Games"; IPOs; Initial Public Offerings; Underwriters; Real Estate; Real Estate Agents; Realtors; Syndicated Markets; Syndication; Brokers; Market Concentration; Competition; Law; Economics; Collaborative Innovation and Invention; Governing Rules, Regulations, and Reforms; Game Theory; Initial Public Offering
Citation
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Barry, Jordan M., John William Hatfield, Scott Duke Kominers, and Richard Lowery. "Not from Concentrate: Collusion in Collaborative Industries." Iowa Law Review 108, no. 3 (March 2023): 1089–1148.
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