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I run a medium scale model for my thesis with a lot of shocks. I needed to group them to make the shock contribution more clear than the current way it's showed by dynare.

To do so, download attached dynare files and put them in /dynare/matlab/ folder. For instance, when using the Smets & Wouters model given by jpfeifer viewtopic.php?f=1&t=3750 , adding at the end of the mod file :

Code: Select all

options_.groups{1}={'ea';'epinf'};
options_.groups{2}={'eg';'eb';'ew'};
options_.groups{3}={'em';'eqs'};
options_.labels = char( 'Supply', 'Demand', 'Monetary' );
shock_decomposition y;

this will aggregate the shocks by the given groups (those given in the example are dummy). if options_.labels is not given, the code will automatically generate some group names.



I wanted to edit dynare argument of the function shock_decomposition(), but i couldnt (dynare was giving me an error). I guess that some important dynare internal functions are declared in dynare.exe, my hex editor told me so (but i cannot edit it, i'm not a C coder).

First of all, you don't need to deal with C-code. Everything here is done in Matlab. Second, the whole shock decomposition is stored in oo_.shock_decomposition. Thus, you could just use this information for graphing.

Hi all,
I´m trying to do the same decomposition metioned previously, but I didn´t understand where should I place the part of the code below:
options_.groups{1}={'ea';'epinf'};
options_.groups{2}={'eg';'eb';'ew'};
options_.groups{3}={'em';'eqs'};
options_.labels = char( 'Supply', 'Demand', 'Monetary' );

Is it before or inside the estimation comand ? Or is it inside the shock_decomposition comand ?

I did a research about this in the forum, but I didn´t find the answer.

Thanks for the attention.

before the shock decomposition command

Hi Frederico,

I know this should be posted in the help part of the forum, but could you take a look and say what is wrong with the part of the code below? I got an "unexpected name" message from dynare, refering to the shock command inside the shock_decompositon command.

options_.groups{1}={'eps_ah';'eps_ys';'eps_sh_i';'eps_sh_w';'eps_ys';};
options_.groups{2}={'eps_sh_c'};
options_.groups{3}={'eps_sh_m'};
options_.groups{4}={'eps_prsF';'eps_yF';'eps_iF';'eps_piF';'eps_prfF';'eps_prfF';'eps_proF'};
options_.labels = char( 'supply', 'demand', 'monetary','external');

stoch_simul(irf=0) y_hat, picz_hat, rer_hat, l_hat, ca_y_hat, i_hat, c_hat, inv_hat;

shock_decomposition(parameter_set = calibration, shocks= (options_.groups{1};options_.groups{2};options_.groups{3};
options_.groups{4}) ,labels= options_.labels)

y_hat, picz_hat, rer_hat, l_hat, ca_y_hat wr_hat c_hat inv_hat pri_hat;

try to move all the label afetr stoch_simul
and simply use the command shock_decomposition without any other option and see if it works.

Besides, I remember i had same troubles in running this options with dynare > 4.3 version.
I succesfully ues it with dynare 4.2.5 .

If it does't work i think you should post your mod file and see what i can do.

here is attached an example file with Smets & Wouters codes.

Hi Vermandel and Frederico,

I think this problem is related with the dynare version, because I ran the code above and got the chart without the labels. I´m using dynare 4.3.3. Which version are you using, Vermandel?

It works surely under dynare version 4.2.5

Hi,

I am working with dynare 4.3.3 version.
I got,

Starting Dynare (version 4.3.3).
Starting preprocessing of the model file ...
ERROR: nonlinearomega.mod:1713.48-53: syntax error, unexpected NAME, expecting DATAFILE or LABELS or PARAMETER_SET or SHOCKS

What is unexpected since in nonlinearomega.mod:1713.48-53 I already have SHOCKS ( for confirmation, please, see the file above).
Is this a bug?

Sorry, but this is no supported function of Dynare. If the original author does not help you out, you will have to solve this yourself.

Thank you. I already solved it myself!