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Predicting and decomposing why representative agent and heterogeneous agent models sometimes diverge

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  • Gallen, Trevor S.

Abstract

Heterogeneous agent (HA) and representative agent (RA) models often give very different answers to important economic questions, even when studying the same phenomenon with the otherwise identical assumptions. There are a variety of reasons why HA and RA models may differ. This paper provides a formula that can be used to decompose the different response functions of HA and RA models into six major “mechanical” categories. Because solving HA models is costly, researchers using this formula are better able to predict when an HA model is unlikely to improve upon an RA model, and defend their use of an RA model without first solving the HA model. Moreover, when two models do diverge, this paper provides a framework for understanding mechanically why they diverged.

Suggested Citation

  • Gallen, Trevor S., 2021. "Predicting and decomposing why representative agent and heterogeneous agent models sometimes diverge," Economic Modelling, Elsevier, vol. 101(C).
    • Handle: RePEc:eee:ecmode:v:101:y:2021:i:c:s0264999321001176
    DOI: 10.1016/j.econmod.2021.105528
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    1. Boppart, Timo & Krusell, Per & Mitman, Kurt, 2018. "Exploiting MIT shocks in heterogeneous-agent economies: the impulse response as a numerical derivative," Journal of Economic Dynamics and Control, Elsevier, vol. 89(C), pages 68-92.
    2. R. Anton Braun & Tomoyuki Nakajima, 2012. "Uninsured Countercyclical Risk: An Aggregation Result And Application To Optimal Monetary Policy," Journal of the European Economic Association, European Economic Association, vol. 10(6), pages 1450-1474, December.
    3. Assenza, Tiziana & Delli Gatti, Domenico, 2013. "E Pluribus Unum: Macroeconomic modelling for multi-agent economies," Journal of Economic Dynamics and Control, Elsevier, vol. 37(8), pages 1659-1682.
    4. Badel, Alejandro & Huggett, Mark, 2017. "The sufficient statistic approach: Predicting the top of the Laffer curve," Journal of Monetary Economics, Elsevier, vol. 87(C), pages 1-12.
    5. Jonathan Heathcote, 2005. "Fiscal Policy with Heterogeneous Agents and Incomplete Markets," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 72(1), pages 161-188.
    6. Nakajima, Tomoyuki, 2005. "A business cycle model with variable capacity utilization and demand disturbances," European Economic Review, Elsevier, vol. 49(5), pages 1331-1360, July.
    7. Francisco J. Buera & Benjamin Moll, 2015. "Aggregate Implications of a Credit Crunch: The Importance of Heterogeneity," American Economic Journal: Macroeconomics, American Economic Association, vol. 7(3), pages 1-42, July.
    8. Sungbae An & Yongsung Chang & Sun-Bin Kim, 2009. "Can a Representative-Agent Model Represent a Heterogeneous-Agent Economy," American Economic Journal: Macroeconomics, American Economic Association, vol. 1(2), pages 29-54, July.
    9. Greg Kaplan & Benjamin Moll & Giovanni L. Violante, 2018. "Monetary Policy According to HANK," American Economic Review, American Economic Association, vol. 108(3), pages 697-743, March.
    10. Iván Werning, 2015. "Incomplete Markets and Aggregate Demand," NBER Working Papers 21448, National Bureau of Economic Research, Inc.
    11. Kanishka Misra & Paolo Surico, 2014. "Consumption, Income Changes, and Heterogeneity: Evidence from Two Fiscal Stimulus Programs," American Economic Journal: Macroeconomics, American Economic Association, vol. 6(4), pages 84-106, October.
    12. SeHyoun Ahn & Greg Kaplan & Benjamin Moll & Thomas Winberry & Christian Wolf, 2018. "When Inequality Matters for Macro and Macro Matters for Inequality," NBER Macroeconomics Annual, University of Chicago Press, vol. 32(1), pages 1-75.
    13. Yongsung Chang & Sun-Bin Kim, 2007. "Heterogeneity and Aggregation: Implications for Labor-Market Fluctuations," American Economic Review, American Economic Association, vol. 97(5), pages 1939-1956, December.
    14. King, Robert G. & Plosser, Charles I. & Rebelo, Sergio T., 1988. "Production, growth and business cycles : I. The basic neoclassical model," Journal of Monetary Economics, Elsevier, vol. 21(2-3), pages 195-232.
    15. Yoram Ben-Porath, 1967. "The Production of Human Capital and the Life Cycle of Earnings," Journal of Political Economy, University of Chicago Press, vol. 75(4), pages 352-352.
    16. Per Krusell & Anthony A. Smith & Jr., 1998. "Income and Wealth Heterogeneity in the Macroeconomy," Journal of Political Economy, University of Chicago Press, vol. 106(5), pages 867-896, October.
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    More about this item

    Keywords

    Heterogeneous agent; Representative agent; Population heterogeneity; Labor supply;
    All these keywords.

    JEL classification:

    • E13 - Macroeconomics and Monetary Economics - - General Aggregative Models - - - Neoclassical
    • E27 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Forecasting and Simulation: Models and Applications
    • C68 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Computable General Equilibrium Models
    • J22 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Time Allocation and Labor Supply
    • J24 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Human Capital; Skills; Occupational Choice; Labor Productivity

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