Interpreting the Hours-Technology Time-Varying Relationship
University of Surrey
Banque de France
Miguel A. Leon-Ledesma
University of Kent, Canterbury - Department of Economics
November 1, 2011
Banque de France Working Paper No. 351
We investigate the time varying relation between hours and technology shocks using a structural business cycle model. We propose an RBC model with a Constant Elasticity of Substitution (CES) production function that allows for capital- and labor-augmenting technology shocks. We estimate the model with Bayesian techniques. In the full sample, we find (i) evidence in favor of a less than unitary elasticity of substitution (rejecting Cobb-Douglas) and (ii) a sizable role for capital augmenting shock for business cycles fluctuations. In rolling sub-samples, we document that the transmission of technology shocks to hours worked has been varying over time. We argue that this change is due to the increase of the elasticity of factor substitution. That is, labor and capital became less complementary throughout the sample inducing a change in the sign and size of the response of hours. We conjecture that this change may have been induced by a change in the skill composition of the labor input.
Number of Pages in PDF File: 40
Keywords: Hours Worked and Business Cycles, Bayesian Methods
JEL Classification: E32, E62, C11, C22working papers series
Date posted: November 29, 2011
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