some problems in calibration

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some problems in calibration

Postby zhanghuifd » Sat Apr 15, 2017 2:06 pm

Dear friends, sorry to post such some simple questions.
I encountered an error as below:
??? Error using ==> print_info at 74
Impossible to find the steady state. Either the model doesn't have a steady state, there are an infinity of steady states, or the guess values are too far from the solution

The residuals of some static equations are not equal to zero.

I also doubt that whether using "exp" or not for third-order approximation is correct, ie. exp(var).(and initial values of vars are in log).
In addition, I want to use the function of "norminv" in the model block to deduce instead of using normcdf, ie. Y = norminv(B). But it does not work. I also try with an external function but in vain.
Sorry for my incomplete questions.
Thanks a lot.
zhanghuifd
 
Posts: 36
Joined: Tue Mar 21, 2017 8:14 am

Re: some problems in calibration

Postby jpfeifer » Sat Apr 15, 2017 6:01 pm

Try not to do all at once. The first step is to get the model running at order=1 without any exp()-substitution. Once that works, doe the exp()-substitution, working from the running, unlogged version. Only then go to third order.
The norminv part will be tricky to achieve. Dynare does currently not support
Code: Select all
norminv

You can define it as an external function, but Dynare does not yet support this at order=3, see https://github.com/DynareTeam/dynare/issues/300
------------
Johannes Pfeifer
University of Cologne
https://sites.google.com/site/pfeiferecon/
jpfeifer
 
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Location: Cologne, Germany

Re: some problems in calibration

Postby zhanghuifd » Sun Apr 16, 2017 1:16 am

Dear Prof. Pfeifer, Thanks for your advice!
zhanghuifd
 
Posts: 36
Joined: Tue Mar 21, 2017 8:14 am


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