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On the Sources of the Great Moderation

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Author Info
Galí, Jordi
Gambetti, Luca
Abstract

The remarkable decline in macroeconomic volatility experienced by the U.S. economy since the mid-80s (the so-called Great Moderation) has been accompanied by large changes in the patterns of comovements among output, hours and labour productivity. Those changes are reflected in both conditional and unconditional second moments as well as in the impulse responses to identified shocks. That evidence points to structural change, as opposed to just good luck, as an explanation for the Great Moderation. We use a simple macro model to suggest some of the immediate sources which are likely to be behind the observed changes.

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Paper provided by C.E.P.R. Discussion Papers in its series CEPR Discussion Papers with number 6632.

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Date of creation: Jan 2008
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Handle: RePEc:cpr:ceprdp:6632

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Related research
Keywords: Great Moderation; Labour hoarding; Monetary policy rules; Structural VARs; Technology Shocks;

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Find related papers by JEL classification:
E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles

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  1. Gali, Jordi & Lopez-Salido, J. David & Valles, Javier, 2003. "Technology shocks and monetary policy: assessing the Fed's performance," Journal of Monetary Economics, Elsevier, vol. 50(4), pages 723-743, May. [Downloadable!] (restricted)
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  2. Francis, Neville & Ramey, Valerie A., 2005. "Is the technology-driven real business cycle hypothesis dead? Shocks and aggregate fluctuations revisited," Journal of Monetary Economics, Elsevier, vol. 52(8), pages 1379-1399, November. [Downloadable!] (restricted)
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  3. Christiano, Lawrence J & Eichenbaum, Martin, 1992. "Current Real-Business-Cycle Theories and Aggregate Labor-Market Fluctuations," American Economic Review, American Economic Association, vol. 82(3), pages 430-50, June. [Downloadable!] (restricted)
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  4. John G. Fernald, 2005. "Trend breaks, long-run restrictions, and the contractionary effects of technology improvements," Working Paper Series 2005-21, Federal Reserve Bank of San Francisco. [Downloadable!]
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  5. Jordi Gali, 1999. "Technology, Employment, and the Business Cycle: Do Technology Shocks Explain Aggregate Fluctuations?," American Economic Review, American Economic Association, vol. 89(1), pages 249-271, March. [Downloadable!] (restricted)
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  6. Stephen G. Cecchetti & Alfonso Flores-Lagunes & Stefan Krause, 2006. "Assessing the Sources of Changes in the Volatility of Real Growth," NBER Working Papers 11946, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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  7. Olivier Blanchard & John Simon, 2001. "The Long and Large Decline in U.S. Output Volatility," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 32(2001-1), pages 135-174. [Downloadable!]
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