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When Demand Creates its Own Supply: Saving Traps

Author

Listed:
  • Christophe Chamley

    (PSE - Paris-Jourdan Sciences Economiques - ENS-PSL - École normale supérieure - Paris - PSL - Université Paris Sciences et Lettres - INRA - Institut National de la Recherche Agronomique - EHESS - École des hautes études en sciences sociales - ENPC - École des Ponts ParisTech - CNRS - Centre National de la Recherche Scientifique, PSE - Paris School of Economics - UP1 - Université Paris 1 Panthéon-Sorbonne - ENS-PSL - École normale supérieure - Paris - PSL - Université Paris Sciences et Lettres - EHESS - École des hautes études en sciences sociales - ENPC - École des Ponts ParisTech - CNRS - Centre National de la Recherche Scientifique - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement, Department of Economics - BU - Boston University [Boston])

Abstract
The mechanism by which aggregate supply creates the income that generates its matching demand (called Say's Law), may not work in a general equilibrium with decentralized markets and savings in bonds or money. Full employment is an equilibrium, but convergence to that state is slow. A self-fulfilling precautionary motive to accumulate bonds (with a zero aggregate supply) can set the economy on an equilibrium path with a fast convergence towards a steady state with unemployment that may be an absorbing state from which no equilibrium path emerges to restore full employment.

Suggested Citation

  • Christophe Chamley, 2014. "When Demand Creates its Own Supply: Saving Traps," PSE-Ecole d'économie de Paris (Postprint) halshs-01109084, HAL.
    • Handle: RePEc:hal:pseptp:halshs-01109084
    DOI: 10.1093/restud/rdt041
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    Citations

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    Cited by:

    1. Paul Beaudry & Dana Galizia & Franck Portier, 2018. "Reconciling Hayek’s and Keynes’ Views of Recessions," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 85(1), pages 119-156.
    2. Jonathan Heathcote & Fabrizio Perri, 2018. "Wealth and Volatility," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 85(4), pages 2173-2213.
    3. Édouard Challe, 2018. "Is the Study of Business-Cycle Fluctuations “Scientific?”," Revue de l'OFCE, Presses de Sciences-Po, vol. 0(3), pages 151-165.
    4. Kuhle, Wolfgang, 2021. "Equilibrium with computationally constrained agents," Mathematical Social Sciences, Elsevier, vol. 109(C), pages 77-92.
    5. Herakles Polemarchakis, 2015. "Markets and Efficiency," The Japanese Economic Review, Japanese Economic Association, vol. 66(2), pages 150-166, June.
    6. Habanabakize Thomas & Muzindutsi Paul-Francois, 2018. "Analysis of the Keynesian Theory of Employment and Sectoral Job Creation: The Case of the South African Manufacturing Sector," Folia Oeconomica Stetinensia, Sciendo, vol. 18(1), pages 123-143, June.
    7. Edouard Challe, 2017. "Uninsured Unemployment Risk and Optimal Monetary Policy," Working Papers 2017-54, Center for Research in Economics and Statistics.
    8. Robertas Zubrickas, 2020. "Contingent wage subsidy," Journal of Public Economic Theory, Association for Public Economic Theory, vol. 22(4), pages 1105-1119, August.

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