source of failure in computing Steady State

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source of failure in computing Steady State

Postby psd » Tue Mar 22, 2011 11:22 pm

Dear all,

I am not able to solve a (nonlinear) model as dynare reports that there are convergence problems in computing the steady state. The steady state relations are derived analytically by hand.
I know that all the residual equations equations should be ideally equal to zero. I have 4 equations, out of 65, for which this does not hold. However, they look like this:
-0.00012943
0.00019404
-0.00019285
0000.57759
Hence they very close to zero. I am wondering whether these nonzero residuals, despite being very close to zero, could be at the source of the problem. I am tempted to think it should not, as I have seen other models running with higher residuals. Could it then be that the model does not have a steady state at all? Is there a way to get a better clue on the source of the problem? I am wondering, for example, whether there is a way to get dynare give you more information about the problem that is behind the message of following type:
SOLVE: maxit has been reached
??? Error using ==> steady_ at 132
STEADY: convergence problems

Thx
psd
psd
 
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Re: source of failure in computing Steady State

Postby jpfeifer » Wed Mar 23, 2011 8:14 am

Hi,
you could try the other algorithms for computing the steady state (solve_algo=???, see the manual). Some of them are somewhat more explicit about the source of the problem.
------------
Johannes Pfeifer
University of Cologne
https://sites.google.com/site/pfeiferecon/
jpfeifer
 
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Location: Cologne, Germany


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