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Log Linearlization

PostPosted: Thu Apr 10, 2014 9:56 pm
by danishussalam
Dear All,

While using dynare, is it necessary to input the equations in the log linear form? If yes, is there any program, code or toolkit in Dynare that can simply perform log linearization for us?

Re: Log Linearlization

PostPosted: Fri Apr 11, 2014 11:51 am
by jpfeifer
There is no requirement for this. Using a variable substitution or the loglinear option, you can get a loglinearization. See Section 4.4. "4.4 Linearization vs. Log-linearization" in Pfeifer(2013): "A Guide to Specifying Observation Equations for the Estimation of DSGE Models" https://sites.google.com/site/pfeiferecon/Pfeifer_2013_Observation_Equations.pdf.