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A strong hysteretic model of Okun's Law: theory and a preliminary investigation

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  • Dany Lang
  • Christian de Peretti

Abstract

This paper presents a 'strong hysteretic' version of Okun's Law, that is, a version of the law in which 'history matters.' In this version of the link between fluctuations in unemployment and growth, the most important past growth shock exerts an influence on the current unemployment rate. A theoretical framework is proposed in order to lay the foundations of this version of Okun's Law. In this framework, the hysteresis property arises because a large number of heterogeneous firms discontinuously adjust their activity levels in response to fluctuations in the rate of growth. The foundations having been laid, a method for empirically testing our hysteretic Okun's Law is presented. An algorithm permits construction of a hysteresis operator, which synthesizes, for every moment, the growth shocks that have remained in the memory bank of the unemployment rate. Empirical tests are conducted to assess the empirical relevance of this version of Okun's Law, as compared to the more familiar linear relationship. Empirical results consistent with hysteresis are found for several of the countries in our sample.

Suggested Citation

  • Dany Lang & Christian de Peretti, 2009. "A strong hysteretic model of Okun's Law: theory and a preliminary investigation," International Review of Applied Economics, Taylor & Francis Journals, vol. 23(4), pages 445-462.
  • Handle: RePEc:taf:irapec:v:23:y:2009:i:4:p:445-462 DOI: 10.1080/02692170902954775
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    Cited by:

    1. Roger Perman & Gaetan Stephan & Christophe Tavéra, 2015. "Okun's Law—a Meta-analysis," Manchester School, University of Manchester, vol. 83(1), pages 101-126, January.
    2. Angel Asensio & Dany Lang & Sébastien Charles, 2012. "Post Keynesian modeling: where are we, and where are we going to?," Journal of Post Keynesian Economics, Taylor & Francis Journals, vol. 34(3), pages 393-412.
    3. KARGI, Bilal, 2014. "Okun’s Law and Long Term Co-Integration Analysis for OECD Countries (1987-2012)," EconStor Open Access Articles, ZBW - German National Library of Economics, pages 77-85.
    4. Roger, Perman & Gaetan, Stephan & Christophe, Tavéra, 2013. "Okun’s law – A meta analysis," SIRE Discussion Papers 2013-59, Scottish Institute for Research in Economics (SIRE).
    5. Giorgio Canarella & Stephen M. Miller, 2017. "Did Okun’s law die after the Great Recession?," Business Economics, Palgrave Macmillan;National Association for Business Economics, vol. 52(4), pages 216-226, October.
    6. Albers, Scott, 2013. "Okun’s Law as a Pi-to-1 ratio: A harmonic / trigonometric theory as to why Okun’s Law works," MPRA Paper 46633, University Library of Munich, Germany.
    7. Kargı, Bilal, 2014. "The Data of Labor Market in Turkey and Time Series Analysis on Economic Growth (2000:01-2013:03)," EconStor Open Access Articles, ZBW - German National Library of Economics, pages 98-102.
    8. Clévenot, Mickaël, 2011. "Post-keynésianisme et théorie de la régulation : des perspectives communes," Revue de la Régulation - Capitalisme, institutions, pouvoirs, Association Recherche et Régulation, vol. 10.
    9. Asensio, Angel & Charles, Sébastien & Lang, Dany & Le Heron, Edwin, 2011. "Les développements récents de la macroéconomie post-keynésienne," Revue de la Régulation - Capitalisme, institutions, pouvoirs, Association Recherche et Régulation, vol. 10.
    10. Phiri, Andrew, 2014. "Re-evaluating Okun's law in South Africa: A nonlinear co-integration approach," MPRA Paper 57398, University Library of Munich, Germany.
    11. Dany Lang & Mark Setterfield, 2012. "Faith-based Macroeconomics: A Critique of Recent Developments in NAIRU Estimation," Chapters,in: Employment, Growth and Development, chapter 5 Edward Elgar Publishing.

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