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Real Business Cycle Dynamics under Rational Inattention

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  • Martins, Guilherme
  • Sinigaglia, Daniel

Abstract

This paper incorporates Rational Inattention as defined by Sims (2003a) to a traditional RBC model with multiple sources of uncertainty. Our model distinguishes between transitory and permanent labor and relative investment productivity shocks. The introduction of information frictions works as an endogenous adjustment cost: given the model parameters, the degree of sluggishness of endogenous variables in response to shocks is optimally determined. In practical terms, Rational Inattention increases the volatility and the contemporaneous correlations with output of consumption and decreases those of investment and hours. Moreover, it generates a trade-off between short-run and long-run shock variances. We believe these effects might have important welfare implications and can provide an analytical understanding on the links between business cycle fluctuations and the long-run performance of an economy.

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Bibliographic Info

Paper provided by University Library of Munich, Germany in its series MPRA Paper with number 14089.

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Date of creation: 14 Mar 2009
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Handle: RePEc:pra:mprapa:14089

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Keywords: Real Business Cycle; Rational Inattention; Technology Diffusion;

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  1. Jonas D. M. Fisher, 2006. "The Dynamic Effects of Neutral and Investment-Specific Technology Shocks," Journal of Political Economy, University of Chicago Press, vol. 114(3), pages 413-451, June.
  2. Gali, J., 1996. "Technology, Employment, and the Business Cycle: Do Technology Shocks Explain Aggregate Fluctuations?," Working Papers 96-28, C.V. Starr Center for Applied Economics, New York University.
  3. Robert G. King & Sergio T. Rebelo, 2000. "Resuscitating Real Business Cycles," NBER Working Papers 7534, National Bureau of Economic Research, Inc.
  4. Mirko Wiederholt & Bartosz Mackowiak, 2005. "Optimal Sticky Prices under Rational Inattention," 2005 Meeting Papers 369, Society for Economic Dynamics.
  5. Laura Veldkamp & Christian Hellwig, 2006. "Knowing What Others Know: Coordination Motives in Information Acquisition," Working Papers 06-14, New York University, Leonard N. Stern School of Business, Department of Economics.
  6. Sims, Christopher A., 2003. "Implications of rational inattention," Journal of Monetary Economics, Elsevier, vol. 50(3), pages 665-690, April.
  7. Michele Boldrin & Lawrence J. Christiano & Jonas D. M. Fisher, 2000. "Habit persistence, asset returns and the business cycle," Staff Report 280, Federal Reserve Bank of Minneapolis.
  8. Alejandro Justiniano & Giorgio E. Primiceri & Andrea Tambalotti, 2009. "Investment Shocks and Business Cycles," NBER Working Papers 15570, National Bureau of Economic Research, Inc.
  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.
  10. Pierpaolo Benigno & Michael Woodford, 2004. "Optimal taxation in an RBC model: A linear-quadratic approach," Discussion Papers 0405-16, Columbia University, Department of Economics.
  11. Yulei Luo, 2005. "Consumption Dynamics under Information Processing Constraints," Macroeconomics 0505011, EconWPA, revised 03 Jun 2005.
  12. James H. Stock & Mark W. Watson, 1998. "Business Cycle Fluctuations in U.S. Macroeconomic Time Series," NBER Working Papers 6528, National Bureau of Economic Research, Inc.
  13. Luo Yulei & Young Eric R, 2009. "Rational Inattention and Aggregate Fluctuations," The B.E. Journal of Macroeconomics, De Gruyter, vol. 9(1), pages 1-43, April.
  14. Sims, Christopher A., 2005. "Rational inattention: a research agenda," Discussion Paper Series 1: Economic Studies 2005,34, Deutsche Bundesbank, Research Centre.
  15. Greenwood, J. & Hercowitz, Z. & Krusell, P., 1998. "The Role of Investment-Specific Technological Change in the Business Cycle," RCER Working Papers 449, University of Rochester - Center for Economic Research (RCER).
  16. Michael Woodford, 2001. "Imperfect Common Knowledge and the Effects of Monetary Policy," NBER Working Papers 8673, National Bureau of Economic Research, Inc.
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