NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Investment Shocks and Business Cycles

Alejandro Justiniano, Giorgio E. Primiceri, Andrea Tambalotti

NBER Working Paper No. 15570
Issued in December 2009
NBER Program(s):   EFG   ME

We study the driving forces of fluctuations in an estimated New Neoclassical Synthesis model of the U.S. economy with several shocks and frictions. In this model, shocks to the marginal efficiency of investment account for the bulk of fluctuations in output and hours at business cycle frequencies. Imperfect competition and, to a lesser extent, technological frictions are the key to their transmission. Labor supply shocks explain a large fraction of the variation in hours at very low frequencies, but are irrelevant over the business cycle. This is important because their microfoundations are widely regarded as unappealing.

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Document Object Identifier (DOI): 10.3386/w15570

Published: Justiniano, Alejandro & Primiceri, Giorgio E. & Tambalotti, Andrea, 2010. "Investment shocks and business cycles," Journal of Monetary Economics, Elsevier, vol. 57(2), pages 132-145, March.

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