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Are the effects of Bloom’s uncertainty shocks robust?

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  • Choi, Sangyup

Abstract

This paper shows that “wait-and-see” dynamics of uncertainty shocks in Bloom (2009) are not necessarily robust over time. Bloom (2009) shows that uncertainty shocks, identified by spikes in stock market volatility from 1962 to 2008, trigger immediate falls in output and employment followed by rapid rebounds after the resolution of uncertainty. This paper finds that if one splits the sample into two sub-samples these findings hold only for the period between 1962 and 1982. Stock market volatility shocks failed to produce “wait-and-see” dynamics after 1983.

Suggested Citation

  • Choi, Sangyup, 2013. "Are the effects of Bloom’s uncertainty shocks robust?," Economics Letters, Elsevier, vol. 119(2), pages 216-220.
    • Handle: RePEc:eee:ecolet:v:119:y:2013:i:2:p:216-220
    DOI: 10.1016/j.econlet.2013.02.015
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    References listed on IDEAS

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    1. Richard Clarida & Jordi Galí & Mark Gertler, 2000. "Monetary Policy Rules and Macroeconomic Stability: Evidence and Some Theory," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 115(1), pages 147-180.
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    Cited by:

    1. Burkhard Raunig & Johann Scharler & Friedrich Sindermann, 2017. "Do Banks Lend Less in Uncertain Times?," Economica, London School of Economics and Political Science, vol. 84(336), pages 682-711, October.
    2. Masayuki MORIKAWA, 2013. "What Type of Policy Uncertainty Matters for Business?," Discussion papers 13076, Research Institute of Economy, Trade and Industry (RIETI).
    3. Choi, Sangyup, 2017. "Variability in the effects of uncertainty shocks: New stylized facts from OECD countries," Journal of Macroeconomics, Elsevier, vol. 53(C), pages 127-144.
    4. Sung Je Byun & Soojin Jo, 2018. "Heterogeneity in the dynamic effects of uncertainty on investment," Canadian Journal of Economics, Canadian Economics Association, vol. 51(1), pages 127-155, February.
    5. Choi Sangyup & Yoon Chansik, 2022. "Uncertainty, Financial Markets, and Monetary Policy over the Last Century," The B.E. Journal of Macroeconomics, De Gruyter, vol. 22(2), pages 397-434, June.
    6. Siye Bae & Soojin Jo & Myungkyu Shim, 2025. "Does Economic Policy Uncertainty differ from other uncertainty measures? Replication of Baker, Bloom, and Davis (2016)," Canadian Journal of Economics/Revue canadienne d'économique, John Wiley & Sons, vol. 58(1), pages 40-74, February.
    7. Choi, Sangyup & Loungani, Prakash, 2015. "Uncertainty and unemployment: The effects of aggregate and sectoral channels," Journal of Macroeconomics, Elsevier, vol. 46(C), pages 344-358.
    8. Morikawa, Masayuki, 2016. "Business uncertainty and investment: Evidence from Japanese companies," Journal of Macroeconomics, Elsevier, vol. 49(C), pages 224-236.
    9. Michael Plante & Alexander W. Richter & Nathaniel A. Throckmorton, 2018. "The Zero Lower Bound and Endogenous Uncertainty," Economic Journal, Royal Economic Society, vol. 128(611), pages 1730-1757, June.
    10. Sangyup Choi, 2018. "The Impact of US Financial Uncertainty Shocks on Emerging Market Economies: An International Credit Channel," Open Economies Review, Springer, vol. 29(1), pages 89-118, February.
    11. Masayuki Morikawa, 2016. "What Types of Policy Uncertainties Matter for Business?," Pacific Economic Review, Wiley Blackwell, vol. 21(5), pages 527-540, December.
    12. Saltzman, Bennett & Yung, Julieta, 2018. "A machine learning approach to identifying different types of uncertainty," Economics Letters, Elsevier, vol. 171(C), pages 58-62.
    13. Ma, Xiaohan & Samaniego, Roberto, 2019. "Deconstructing uncertainty," European Economic Review, Elsevier, vol. 119(C), pages 22-41.
    14. Benjamin Born & Sebastian Breuer & Steffen Elstner, 2018. "Uncertainty and the Great Recession," Oxford Bulletin of Economics and Statistics, Department of Economics, University of Oxford, vol. 80(5), pages 951-971, October.

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    JEL classification:

    • E30 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - General (includes Measurement and Data)
    • E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles
    • G10 - Financial Economics - - General Financial Markets - - - General (includes Measurement and Data)

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