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Okun's law - a meta analysis

Author

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  • Roger Perman

    (Department of Economics, University of Strathclyde)

  • Stephan Gaetan

    (CREM)

  • Christophe Tavera

    (CREM)

Abstract

This paper seeks to identify whether there is a representative empirical Okun’s Law coefficient (OLC) and to measure its size. We carry out a meta regression analysis on a sample of 269 estimates of the OLC to uncover reasons for differences in empirical results and to estimate the ‘true’ OLC. On statistical (and other) grounds, we find it appropriate to investigate two separate subsamples, using respectively (some measure of) unemployment or output as dependent variable. Our results can be summarized as follows. First, there is evidence of type II publication bias in both sub-samples, but a type I bias is present only among the papers using some measure of unemployment as the dependent variable. Second, after correction for publication bias, authentic and statistically significant OLC effects are present in both sub-samples. Third, bias-corrected estimated true OLCs are significantly lower (in absolute value) with models using some measure of unemployment as the dependent variable. Using a bivariate MRA approach, the estimated true effects are -0.25 for the unemployment sub-sample and -0.61 for the output-sub sample; with a multivariate MRA methodology, the estimated true effects are -0.40 and -1.02 for the unemployment and the output-sub samples respectively.

Suggested Citation

  • Roger Perman & Stephan Gaetan & Christophe Tavera, 2013. "Okun's law - a meta analysis," Working Papers 1311, University of Strathclyde Business School, Department of Economics.
  • Handle: RePEc:str:wpaper:1311
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    Citations

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    Cited by:

    1. Pham, Binh Thai & Sala, Hector, 2019. "Government Deficit Shocks and Okun's Coefficient Volatility: New Insights on the Austerity versus Growth Debate," IZA Discussion Papers 12492, Institute of Labor Economics (IZA).
    2. Bande, Roberto & Martín-Román, Ángel, 2018. "Regional differences in the Okun’s Relationship: New Evidence for Spain (1980-2015)," INVESTIGACIONES REGIONALES - Journal of REGIONAL RESEARCH, Asociación Española de Ciencia Regional, issue 41, pages 137-165.
    3. Robert Dixon & G. C. Lim & Jan C. van Ours, 2017. "Revisiting the Okun relationship," Applied Economics, Taylor & Francis Journals, vol. 49(28), pages 2749-2765, June.
    4. van Ours, J.C., 2015. "The Great Recession was not so Great," Other publications TiSEM b88a88a8-c20f-4145-84c2-f, Tilburg University, School of Economics and Management.
    5. Celia Melguizo, 2017. "An analysis of Okun’s law for the Spanish provinces," Review of Regional Research: Jahrbuch für Regionalwissenschaft, Springer;Gesellschaft für Regionalforschung (GfR), vol. 37(1), pages 59-90, February.
    6. Görg, Holger & Henze, Philipp & Jienwatcharamongkhol, Viroj & Kopasker, Daniel & Molana, Hassan & Montagna, Catia & Sjöholm, Fredrik, 2017. "Firm size distribution and employment fluctuations: Theory and evidence," Research in Economics, Elsevier, vol. 71(4), pages 690-703.
    7. John P. A. Ioannidis & T. D. Stanley & Hristos Doucouliagos, 2017. "The Power of Bias in Economics Research," Economic Journal, Royal Economic Society, vol. 127(605), pages 236-265, October.
    8. repec:wly:econjl:v::y:2017:i:605:p:f236-f265 is not listed on IDEAS

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    More about this item

    Keywords

    Okuns law; meta analysis; Okun's law coefficient; OLC;
    All these keywords.

    JEL classification:

    • E3 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles
    • E31 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Price Level; Inflation; Deflation
    • E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles
    • E6 - Macroeconomics and Monetary Economics - - Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook

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