Difficulties when estimate a DSGE model

[hefangfang0112]

Dear all,
I am estimating a economic DSGE model with DYNARE,and i meet problems as follow:
??? Error using ==> chol
Matrix must be positive definite.

Error in ==> metropolis_hastings_initialization at 52
d = chol(vv);

Error in ==> random_walk_metropolis_hastings at 58
[ ix2, ilogpo2, ModelName, MhDirectoryName, fblck, fline, npar, nblck, nruns,
NewFile, MAX_nruns, d ] = ...

Error in ==> dynare_estimation_1 at 871
feval(options_.posterior_sampling_method,'DsgeLikelihood',options_.proposal_distribution,xparam1,invhess,bounds,gend,data,...

Error in ==> dynare_estimation at 62
dynare_estimation_1(var_list,varargin{:});

Error in ==> monetary at 247
dynare_estimation(var_list_);

Error in ==> dynare at 132
evalin('base',fname) ;
Since i am a beginner of dynare,i don't know how to solve the problem.I need your help,thank you very much.

monetary.mod

Here is my model mode .

(2.21 KiB) Downloaded 368 times

data_2ond.m

This is my data file.

(2.52 KiB) Downloaded 308 times

[jpfeifer]

Use mode_compute=6 (search the forum using Google on the issue, there are countless posts). Moreover, check the timing for k, particularly in the production function and the law of motion.

[hefangfang0112]

Thank you for your reply,i can run the mode file successfully now.Best wishes!

[salarcon]

i am trying to stimate a dsge model but the dynare told me: Impossible to find the steady state.
i dont know what is wrong with my code
please help me

[jpfeifer]

@salarcon Please recheck your model. Your exogenous processes are most surely wrong. Why do you have

Code: Select all

log(Px) = rho*Px((-1))+ e;
log(Pm) = mrho*Pm((-1));


with log on the left and levels on the right side?