Stationarizing log linear model

Dynare help (legacy posts)
1

Hi,

I am a newbie in Dynare and DSGE model, I have some questions. Would you please help me?

My model is already in terms of log linearized around steady state by hand. I know in this case the steady state is equal to zero.
As the variables are already in its deviation from steady state, which I assume should be stationary. Should I still need to stationarize the model before doing log linearization?

If I assume there is no technological growth as well as no population growth, I do not need to stationarize the model, isn’t it?

Many thanks, I am looking forward to the experts explanation.

2

I think if you can do loglinearizeing, it means you can get the stady state. if your model is non-stationary, you can not find the steady state. About the growth rate, please refer to An sungbae and Frank(2007), they introduced how to stationarize your model before log linearizing.

3

Dear Zheng,
Many thanks for your reply.