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An Economy of AI Agents

Author

Listed:
  • Gillian K. Hadfield
  • Andrew Koh

Abstract

In the coming decade, artificially intelligent agents with the ability to plan and execute complex tasks over long time horizons with little direct oversight from humans may be deployed across the economy. This chapter surveys recent developments and highlights open questions for economists around how AI agents might interact with humans and with each other, shape markets and organizations, and what institutions might be required for well-functioning markets.

Suggested Citation

  • Gillian K. Hadfield & Andrew Koh, 2025. "An Economy of AI Agents," Papers 2509.01063, arXiv.org.
  • Handle: RePEc:arx:papers:2509.01063
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    References listed on IDEAS

    as
    1. Romer, Paul M, 1986. "Increasing Returns and Long-run Growth," Journal of Political Economy, University of Chicago Press, vol. 94(5), pages 1002-1037, October.
    2. Emilio Calvano & Giacomo Calzolari & Vincenzo Denicolò & Sergio Pastorello, 2020. "Artificial Intelligence, Algorithmic Pricing, and Collusion," American Economic Review, American Economic Association, vol. 110(10), pages 3267-3297, October.
    3. Alchian, Armen A & Demsetz, Harold, 1972. "Production , Information Costs, and Economic Organization," American Economic Review, American Economic Association, vol. 62(5), pages 777-795, December.
    4. George Baker & Robert Gibbons & Kevin J. Murphy, 2002. "Relational Contracts and the Theory of the Firm," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 117(1), pages 39-84.
    5. Krishna Dasaratha & Benjamin Golub & Anant Shah, 2024. "Incentive Design with Spillovers," Papers 2411.08026, arXiv.org.
    6. V. Bhaskar & George J. Mailath & Stephen Morris, 2013. "A Foundation for Markov Equilibria in Sequential Games with Finite Social Memory -super-," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 80(3), pages 925-948.
    7. Rubinstein, Ariel, 1982. "Perfect Equilibrium in a Bargaining Model," Econometrica, Econometric Society, vol. 50(1), pages 97-109, January.
    8. Kristina McElheran & J. Frank Li & Erik Brynjolfsson & Zachary Kroff & Emin Dinlersoz & Lucia Foster & Nikolas Zolas, 2024. "AI adoption in America: Who, what, and where," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 33(2), pages 375-415, March.
    9. Dirk Bergemann & Stephen Morris, 2013. "Robust Predictions in Games With Incomplete Information," Econometrica, Econometric Society, vol. 81(4), pages 1251-1308, July.
    10. Paul R. Milgrom & Douglass C. North & Barry R. Weingast*, 1990. "The Role Of Institutions In The Revival Of Trade: The Law Merchant, Private Judges, And The Champagne Fairs," Economics and Politics, Wiley Blackwell, vol. 2(1), pages 1-23, March.
    11. Bergemann, Dirk & Bonatti, Alessandro & Smolin, Alex, 2025. "The Economics of Large Language Models: Token Allocation, Fine-Tuning, and Optimal Pricing," TSE Working Papers 25-1670, Toulouse School of Economics (TSE).
    12. Anton Korinek & Donghyun Suh, 2024. "Scenarios for the Transition to AGI," NBER Working Papers 32255, National Bureau of Economic Research, Inc.
    13. Jonathan Levin, 2003. "Relational Incentive Contracts," American Economic Review, American Economic Association, vol. 93(3), pages 835-857, June.
    14. Jean-Jacques Laffont & Jean Tirole, 1993. "A Theory of Incentives in Procurement and Regulation," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262121743, December.
    15. Nikhil Agarwal & Alex Moehring & Alexander Wolitzky, 2025. "Designing Human-AI Collaboration: A Sufficient-Statistic Approach," NBER Working Papers 33949, National Bureau of Economic Research, Inc.
    16. Justin P. Johnson & Andrew Rhodes & Matthijs Wildenbeest, 2023. "Platform Design When Sellers Use Pricing Algorithms," Econometrica, Econometric Society, vol. 91(5), pages 1841-1879, September.
    17. Daniel Clark & Drew Fudenberg & Alexander Wolitzky, 2021. "Record-Keeping and Cooperation in Large Societies [Has Punishment Played a Role in the Evolution of Cooperation? A Critical Review]," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 88(5), pages 2179-2209.
    18. Daron Acemoglu & David Autor & Jonathon Hazell & Pascual Restrepo, 2022. "Artificial Intelligence and Jobs: Evidence from Online Vacancies," Journal of Labor Economics, University of Chicago Press, vol. 40(S1), pages 293-340.
    19. Green, Edward J & Porter, Robert H, 1984. "Noncooperative Collusion under Imperfect Price Information," Econometrica, Econometric Society, vol. 52(1), pages 87-100, January.
    20. Zach Y. Brown & Alexander MacKay, 2023. "Competition in Pricing Algorithms," American Economic Journal: Microeconomics, American Economic Association, vol. 15(2), pages 109-156, May.
    21. Tennenholtz, Moshe, 2004. "Program equilibrium," Games and Economic Behavior, Elsevier, vol. 49(2), pages 363-373, November.
    22. Grossman, Sanford J & Hart, Oliver D, 1986. "The Costs and Benefits of Ownership: A Theory of Vertical and Lateral Integration," Journal of Political Economy, University of Chicago Press, vol. 94(4), pages 691-719, August.
    23. Felipe Varas & Iván Marinovic & Andrzej Skrzypacz, 2020. "Random Inspections and Periodic Reviews: Optimal Dynamic Monitoring," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 87(6), pages 2893-2937.
    24. repec:cwl:cwldpp:1821rrr is not listed on IDEAS
    25. Greif, Avner & Milgrom, Paul & Weingast, Barry R, 1994. "Coordination, Commitment, and Enforcement: The Case of the Merchant Guild," Journal of Political Economy, University of Chicago Press, vol. 102(4), pages 745-776, August.
    26. Aumann, Robert J. & Sorin, Sylvain, 1989. "Cooperation and bounded recall," Games and Economic Behavior, Elsevier, vol. 1(1), pages 5-39, March.
    27. Michihiro Kandori, 1992. "Social Norms and Community Enforcement," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 59(1), pages 63-80.
    28. Tirole, Jean, 1986. "Hierarchies and Bureaucracies: On the Role of Collusion in Organizations," The Journal of Law, Economics, and Organization, Oxford University Press, vol. 2(2), pages 181-214, Fall.
    29. Fudenberg, Drew & Levine, David K, 1993. "Self-Confirming Equilibrium," Econometrica, Econometric Society, vol. 61(3), pages 523-545, May.
    30. Steven Tadelis, 2002. "The Market for Reputations as an Incentive Mechanism," Journal of Political Economy, University of Chicago Press, vol. 110(4), pages 854-882, August.
    31. Chen, Jun & Elliott, Matthew & Koh, Andrew, 2023. "Capability accumulation and conglomeratization in the information age," Journal of Economic Theory, Elsevier, vol. 210(C).
    32. Andrei Kirilenko & Albert S. Kyle & Mehrdad Samadi & Tugkan Tuzun, 2017. "The Flash Crash: High-Frequency Trading in an Electronic Market," Journal of Finance, American Finance Association, vol. 72(3), pages 967-998, June.
    33. Agrawal, Ajay & McHale, John & Oettl, Alexander, 2024. "Artificial intelligence and scientific discovery: a model of prioritized search," Research Policy, Elsevier, vol. 53(5).
    34. Benjamin Golub & Matthew Elliott, 2022. "Networks and Economic Fragility," Annual Review of Economics, Annual Reviews, vol. 14(1), pages 665-696, August.
    35. Jeongbin Kim & Matthew Kovach & Kyu-Min Lee & Euncheol Shin & Hector Tzavellas, 2024. "Learning to be Homo Economicus: Can an LLM Learn Preferences from Choice," Papers 2401.07345, arXiv.org.
    36. Ibrahim Abada & Xavier Lambin, 2023. "Artificial Intelligence: Can Seemingly Collusive Outcomes Be Avoided?," Management Science, INFORMS, vol. 69(9), pages 5042-5065, September.
    37. Stephanie Assad & Robert Clark & Daniel Ershov & Lei Xu, 2024. "Algorithmic Pricing and Competition: Empirical Evidence from the German Retail Gasoline Market," Journal of Political Economy, University of Chicago Press, vol. 132(3), pages 723-771.
    38. Harry Pei, 2024. "Reputation Effects under Short Memories," Journal of Political Economy, University of Chicago Press, vol. 132(10), pages 3421-3460.
    39. Chaim Fershtman & Kenneth L. Judd, 2006. "Equilibrium Incentives in Oligopoly: Corrigendum," American Economic Review, American Economic Association, vol. 96(4), pages 1367-1367, September.
    40. John J. Horton, 2023. "Large Language Models as Simulated Economic Agents: What Can We Learn from Homo Silicus?," NBER Working Papers 31122, National Bureau of Economic Research, Inc.
    41. John J. Horton, 2023. "Large Language Models as Simulated Economic Agents: What Can We Learn from Homo Silicus?," Papers 2301.07543, arXiv.org.
    42. Elif Akata & Lion Schulz & Julian Coda-Forno & Seong Joon Oh & Matthias Bethge & Eric Schulz, 2025. "Playing repeated games with large language models," Nature Human Behaviour, Nature, vol. 9(7), pages 1380-1390, July.
    43. Maryam Farboodi & Laura Veldkamp, 2021. "A Model of the Data Economy," NBER Working Papers 28427, National Bureau of Economic Research, Inc.
    44. Narun Raman & Taylor Lundy & Samuel Amouyal & Yoav Levine & Kevin Leyton-Brown & Moshe Tennenholtz, 2024. "STEER: Assessing the Economic Rationality of Large Language Models," Papers 2402.09552, arXiv.org, revised May 2024.
    45. Birger Wernerfelt, 1984. "A resource‐based view of the firm," Strategic Management Journal, Wiley Blackwell, vol. 5(2), pages 171-180, April.
    46. Patrick Bajari & Victor Chernozhukov & Ali Hortaçsu & Junichi Suzuki, 2019. "The Impact of Big Data on Firm Performance: An Empirical Investigation," AEA Papers and Proceedings, American Economic Association, vol. 109, pages 33-37, May.
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