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Uninsured Countercyclical Risk: An Aggregation Result And Application To Optimal Monetary Policy

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  • R. Anton Braun
  • Tomoyuki Nakajima

Abstract

We consider an incomplete markets economy with capital accumulation and endogenous labor supply. Individuals face countercyclical idiosyncratic labor and asset risk. We derive conditions under which the aggregate allocations and price system can be found by solving a representative agent problem. This result is applied to analyze the properties of an optimal monetary policy in a New Keynesian economy with uninsured countercyclical individual risk. The optimal monetary policy that emerges from our incomplete markets economy is the same as the optimal monetary policy in a representative agent model with preference shocks. When price rigidity is the only friction the optimal monetary policy calls for stabilizing the in ation rate at zero.
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Suggested Citation

  • 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.
    • Handle: RePEc:bla:jeurec:v:10:y:2012:i:6:p:1450-1474
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    File URL: http://hdl.handle.net/10.1111/j.1542-4774.2012.01091.x
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    Blog mentions

    As found by EconAcademics.org, the blog aggregator for Economics research:
    1. Optimal monetary policy when asset markets are incomplete
      by Christian Zimmermann in NEP-DGE blog on 2010-09-22 01:49:21

    Citations

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    Cited by:

    1. Edouard Challe & Xavier Ragot, 2016. "Precautionary Saving Over the Business Cycle," Economic Journal, Royal Economic Society, vol. 126(590), pages 135-164, February.
    2. Gallen, Trevor S., 2021. "Predicting and decomposing why representative agent and heterogeneous agent models sometimes diverge," Economic Modelling, Elsevier, vol. 101(C).
    3. repec:hal:pseose:halshs-01313771 is not listed on IDEAS
    4. Ivan Sutoris, 2018. "Asset Prices in a Production Economy with Long-run and Idiosyncratic Risk," Working Papers 2018/4, Czech National Bank, Research and Statistics Department.
    5. Edouard Challe, 2020. "Uninsured Unemployment Risk and Optimal Monetary Policy in a Zero-Liquidity Economy," American Economic Journal: Macroeconomics, American Economic Association, vol. 12(2), pages 241-283, April.
    6. R. Anton Braun & Daisuke Ikeda, 2025. "Monetary Policy Over the Lifecycle," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 56, April.
    7. Shuhei Takahashi, 2020. "Time-Varying Wage Risk, Incomplete Markets, and Business Cycles," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 37, pages 195-213, July.
    8. Cheng-Wei Chang & Ching-Chong Lai & Juin-Jen Chang, 2018. "Fiscal Stimulus and Endogenous Firm Entry in a Monopolistic Competition Macroeconomic Model," The Japanese Economic Review, Springer, vol. 69(2), pages 207-225, June.
    9. Edouard Challe, 2017. "Uninsured Unemployment Risk and Optimal Monetary Policy," Working Papers 2017-54, Center for Research in Economics and Statistics.
    10. Shuhei Takahashi, 2018. "Does State-Dependent Wage Setting Generate Multiple Equilibria?," KIER Working Papers 991, Kyoto University, Institute of Economic Research.
    11. Dario Bonciani & Joonseok Oh, 2021. "Unemployment risk, liquidity traps and monetary policy," Bank of England working papers 920, Bank of England.
    12. Fatih Guvenen & Serdar Ozkan & Jae Song, 2014. "The Nature of Countercyclical Income Risk," Journal of Political Economy, University of Chicago Press, vol. 122(3), pages 621-660.
    13. Yuichiro Waki, "undated". "Excess sensitivity to targeted fiscal interventions in HANK models with zero liquidity," MRG Discussion Paper Series 4823, School of Economics, University of Queensland, Australia.
    14. Takahashi, Yuta & Takayama, Naoki, 2025. "A parsimonious model for zero inflation at the zero lower bound," Economics Letters, Elsevier, vol. 247(C).
    15. Waki, Yuichiro, 2022. "A cautionary note on linear aggregation in macroeconomic models under the RINCE preferences," Journal of Macroeconomics, Elsevier, vol. 72(C).
    16. repec:spo:wpmain:info:hdl:2441/54k1p7hdq38odb1k39k1rdm8di is not listed on IDEAS

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