withinvar

<p>Vector of log(value added output).</p>

inmat

<p><code>withinvar()</code> subtracts the mean of a vector from the vector itself, and then returns its variance.</p>

Implements the methods proposed by Olley, G.S. and Pakes, A. (1996) <doi:10.2307/2171831>, Levinsohn, J. and Petrin, A. (2003) <doi:10.1111/1467-937X.00246>, Ackerberg, D.A. and Caves, K. and Frazer, G. (2015) <doi:10.3982/ECTA13408> and Wooldridge, J.M. (2009) <doi:10.1016/j.econlet.2009.04.026> for structural productivity estimation .

Gabriele Rovigatti

withinvar: Generate the variance of the demeaned variable

Description

Usage

Arguments

Details