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Stock Prices, News and Economic Fluctuations

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Author Info
Beaudry, Paul
Portier, Franck

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Abstract

A common view in macroeconomics is that business cycles can be meaningfully decomposed into fluctuations driven by demand shocks - which are shocks that have no short- or long-run effects on productivity - and fluctuations driven by unexpected changes in technology. In this Paper we propose a means of evaluating this view and we show that it is strongly at odds with the data. In contrast, we show that the data favours a view of business cycles driven primarily by a shock that does not affect productivity in the short run - therefore it looks like a demand shock - but affects productivity in the long run. The structural interpretation we suggest for this shock is that it represents news about future technological opportunities. We show that this shock explains about 50% of business cycle fluctuations and therefore deserves to be acknowledged and further understood by macroeconomists.

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Paper provided by C.E.P.R. Discussion Papers in its series CEPR Discussion Papers with number 3844.

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Date of creation: Mar 2003
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Handle: RePEc:cpr:ceprdp:3844

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Related research
Keywords: business cycle; news; productivity shocks;

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Find related papers by JEL classification:
E30 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - General (includes Measurement and Data)

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  1. Canadian Macro Study Group
References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
  1. Jeremy Greenwood & Boyan Jovanovic, 1999. "The Information-Technology Revolution and the Stock Market," American Economic Review, American Economic Association, vol. 89(2), pages 116-122, May. [Downloadable!] (restricted)
  2. Benhabib, Jess & Farmer, Roger E.A., 1999. "Indeterminacy and sunspots in macroeconomics," Handbook of Macroeconomics, in: J. B. Taylor & M. Woodford (ed.), Handbook of Macroeconomics, edition 1, volume 1, chapter 6, pages 387-448 Elsevier. [Downloadable!] (restricted)
  3. Susanto Basu & John Fernald & Miles Kimball, 2004. "Are technology improvements contractionary?," Working Paper Series WP-04-20, Federal Reserve Bank of Chicago. [Downloadable!]
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  4. Mankiw, N Gregory & Romer, David & Shapiro, Matthew D, 1985. " An Unbiased Reexamination of Stock Market Volatility," Journal of Finance, American Finance Association, vol. 40(3), pages 677-87, July. [Downloadable!] (restricted)
    Other versions:
  5. Nyblom, Jukka & Harvey, Andrew, 2000. "Tests Of Common Stochastic Trends," Econometric Theory, Cambridge University Press, vol. 16(02), pages 176-199, April. [Downloadable!]
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  6. Fama, Eugene F, 1990. " Stock Returns, Expected Returns, and Real Activity," Journal of Finance, American Finance Association, vol. 45(4), pages 1089-1108, September. [Downloadable!] (restricted)
  7. G. William Schwert, 1990. "Stock Returns and Real Activity: A Century of Evidence," NBER Working Papers 3296, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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  8. 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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  9. Greenwood, Jeremy & Hercowitz, Zvi & Krusell, Per, 1997. "Long-Run Implications of Investment-Specific Technological Change," American Economic Review, American Economic Association, vol. 87(3), pages 342-62, June. [Downloadable!] (restricted)
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  10. Lawrence J. Christiano & Martin Eichenbaum & Robert Vigfusson, 2003. "What Happens After a Technology Shock?," NBER Working Papers 9819, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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  11. Randall Morck & Andrei Shleifer & Robert W. Vishny, 1990. "The Stock Market and Investment: Is the Market a Sideshow?," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 21(1990-2), pages 157-216. [Downloadable!]
  12. Blanchard, Olivier Jean & Quah, Danny, 1989. "The Dynamic Effects of Aggregate Demand and Supply Disturbances," American Economic Review, American Economic Association, vol. 79(4), pages 655-73, September. [Downloadable!] (restricted)
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  13. Shiller, Robert J, 1981. "Do Stock Prices Move Too Much to be Justified by Subsequent Changes in Dividends?," American Economic Review, American Economic Association, vol. 71(3), pages 421-36, June. [Downloadable!] (restricted)
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  14. Paul Beaudry & Franck Portier, 2004. "Stock Prices, News and Economic Fluctuations," NBER Working Papers 10548, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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  15. Pakes, Ariel, 1985. "On Patents, R&D, and the Stock Market Rate of Return," Journal of Political Economy, University of Chicago Press, vol. 93(2), pages 390-409, April. [Downloadable!] (restricted)
  16. Valerie Ramey & Neville Francis, 2002. "Is The Technology-Driven Real Business Cycle Hypothesis Dead? Shocks and Aggregate Fluctuations Revisted," University of California at San Diego, Economics Working Paper Series 2002-03, Department of Economics, UC San Diego. [Downloadable!]
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  17. Ricardo J. Caballero & Mohamad L. Hammour, 2002. "Speculative Growth," NBER Working Papers 9381, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
  18. Lawrence J. Christiano & Jonas D. M. Fisher, 2003. "Stock Market and Investment Goods Prices: Implications for Macroeconomics," NBER Working Papers 10031, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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