Noisy Business Cycles

George-Marios Angeletos and Jennifer La'O

No 14982, NBER Working Papers from National Bureau of Economic Research, Inc

Abstract: This paper investigates a real-business-cycle economy that features dispersed information about the underlying aggregate productivity shocks, taste shocks, and, potentially, shocks to monopoly power. We show how the dispersion of information can (i) contribute to significant inertia in the response of macroeconomic outcomes to such shocks; (ii) induce a negative short-run response of employment to productivity shocks; (iii) imply that productivity shocks explain only a small fraction of high-frequency fluctuations; (iv) contribute to significant noise in the business cycle; (v) formalize a certain type of demand shocks within an RBC economy; and (vi) generate cyclical variation in observed Solow residuals and labor wedges. Importantly, none of these properties requires significant uncertainty about the underlying fundamentals: they rest on the heterogeneity of information and the strength of trade linkages in the economy, not the level of uncertainty. Finally, none of these properties are symptoms of inefficiency: apart from undoing monopoly distortions or providing the agents with more information, no policy intervention can improve upon the equilibrium allocations.

JEL-codes: C7 D6 D8 (search for similar items in EconPapers)
Date: 2009-05
New Economics Papers: this item is included in nep-bec, nep-cba, nep-dge and nep-mac
Note: EFG ME
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Citations: View citations in EconPapers (32)

Published as Noisy Business Cycles , George-Marios Angeletos, Jennifer La'O. in NBER Macroeconomics Annual 2009, Volume 24 , Acemoglu, Rogoff, and Woodford. 2010

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