Figure loop parameters

[amina0621]

Hello,

I want to plot IRF of different parameter values in the same figure. In my loop file, beta takes four different values and I would like to show the IRF of “sdf_eR” for four different beta values. Currently, it only shows the same IRF for four times.

The main problem is that in .mod file “set_param_value(‘beta’,beta);” while it is “set_param_value(‘beta’,betas(i));” in the .m file. So I think it is just taking the initial beta value rather than looping over.
I have attached .m and .mod file that includes loop.iac.m (1.2 KB) iacov.mod (3.0 KB)

Can anyone tell me where I made a mistake?
Thanks.

[jpfeifer]

What you are doing is not a proper loop. The full call to Dynare will override all settings in the m-file. See

Loop over parameters

You are not actually setting the parameter. What you should do is use the the set_param_value command. Moreover, if you have an analytic steady state, use a steady_state_model block instead of initval. You can find an example for such a loop here: [Need help to check Matlab compatibility). Basically, you need to write a Matlab m-file with the following parts: rhos = 0.8:0.05:1.05; first_time = 1; for i=1:length(rhos) if first_time set_param_value('rho',rhos(i)); dynare your_…

[LEEE]

Excuse me. I noticed the ‘var eR=1’ in the shock-block in the mod file. May I ask what it means to set ‘eR=1’ here.
Also, does the parameter sR in the mod file refer to the standard deviation of the shock.
I have just learned the DSGE model and hope for more guidance. Thank you!

[jpfeifer]

The shocks block sets the variance of the shock eR to 1. The parameter sR then scales this shock, i.e. it is the standard deviation.

[LEEE]

Thank you for your answer and reply！