Impossible to find the steady state

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Impossible to find the steady state

Postby riiiiad » Fri Jan 16, 2015 8:59 pm

hello everyone
I have a problem with my dynare code
i write on dynare the equations from Ruslan Aliyev's paper " Monetary Policy in Resource-Rich" (page 41) with parameters (page 19) and initial value (page 21) but when i run the code there is a error message :

??? 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

Error in ==> steady at 92
print_info(info,options_.noprint, options_);

Error in ==> code at 241
steady;

Error in ==> dynare at 180
evalin('base',fname) ;
I am looking for help
thanks
Attachments
paper.pdf
(637.79 KiB) Downloaded 62 times
code.mod
(1.63 KiB) Downloaded 39 times
riiiiad
 
Posts: 14
Joined: Mon Jan 12, 2015 9:09 pm

Re: Impossible to find the steady state

Postby jpfeifer » Sat Jan 17, 2015 1:24 pm

The unstable version of Dynare is able to find a steady state. But there is a collinearity issue in your model. Upon running model_diagnostics, I get
MODEL_DIAGNOSTICS: The Jacobian of the static model is singular
MODEL_DIAGNOSTICS: there is 3 colinear relationships between the variables and the equations
Relation 1
Colinear variables:
c
cm
cn
e
p
pm
pn
m
l
lm
lln
km
kn
w
r
phi
s
y
ym
yn
Relation 2
Colinear variables:
c
cm
cn
e
p
pm
pn
m
l
lm
lln
km
kn
w
r
phi
s
y
ym
yn
Relation 3
Colinear variables:
c
cm
cn
e
p
pm
pn
m
l
lm
lln
km
kn
w
r
phi
s
y
ym
yn
Relation 1
Colinear equations
13 14 15

Relation 2
Colinear equations
14 15

Relation 3
Colinear equations
13 14 15
MODEL_DIAGNOSTICS: The presence of a singularity problem typically indicates that there is one
MODEL_DIAGNOSTICS: redundant equation entered in the model block, while another non-redundant equation
MODEL_DIAGNOSTICS: is missing. The problem often derives from Walras Law.
------------
Johannes Pfeifer
University of Cologne
https://sites.google.com/site/pfeiferecon/
jpfeifer
 
Posts: 6940
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Location: Cologne, Germany

Re: Impossible to find the steady state

Postby riiiiad » Sat Jan 17, 2015 3:25 pm

thank you professor,
so, what should i do.
riiiiad
 
Posts: 14
Joined: Mon Jan 12, 2015 9:09 pm

Re: Impossible to find the steady state

Postby jpfeifer » Sat Jan 17, 2015 3:41 pm

Find the source of the problem. Unfortunately, this is hard. As the error message says, usually you have selected one redundant equation from the paper while omitting another one that should take its place. You need to find the redundant and the missing equation.
------------
Johannes Pfeifer
University of Cologne
https://sites.google.com/site/pfeiferecon/
jpfeifer
 
Posts: 6940
Joined: Sun Feb 21, 2010 4:02 pm
Location: Cologne, Germany

Re: Impossible to find the steady state

Postby riiiiad » Sat Jan 17, 2015 5:44 pm

thank you professor
I will consider your comments
riiiiad
 
Posts: 14
Joined: Mon Jan 12, 2015 9:09 pm


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