CES technology and business cycle fluctuations
Cristiano Cantore,
Paul Levine (),
Joseph Pearlman and
Bo Yang
Journal of Economic Dynamics and Control, 2015, vol. 61, issue C, 133-151
Abstract:
We contribute to an emerging literature that brings the constant elasticity of substitution (CES) specification of the production function into the analysis of business cycle fluctuations. Using US data, we estimate by Bayesian-Maximum-Likelihood methods a standard medium-sized DSGE model with a CES rather than Cobb–Douglas (CD) technology. We estimate a elasticity of substitution between capital and labour well below unity at 0.15–0.18. In a marginal likelihood race CES decisively beats the CD production and this is matched by its ability to fit the data better in terms of second moments. We show that this result is mainly driven by the implied fluctuations of factor shares under the CES specification. The CES model performance is further improved when the estimation is carried out under an imperfect information assumption. Hence the main message for DSGE models is that we should dismiss once and for all the use of CD for business cycle analysis.
Keywords: CES production function; DSGE model; Bayesian estimation; Imperfect information (search for similar items in EconPapers)
JEL-codes: C11 C52 D24 E32 (search for similar items in EconPapers)
Date: 2015
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Citations: View citations in EconPapers (26)
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Working Paper: CES Technology and Business Cycle Fluctuations (2014) 
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Persistent link: https://EconPapers.repec.org/RePEc:eee:dyncon:v:61:y:2015:i:c:p:133-151
DOI: 10.1016/j.jedc.2015.09.006
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