# Problem in coding

Dear Professors
Dynare tell me I have problem in log-linearization
I want to see which of my equation and where it have problem, how can I do that?

Dear Dr.
this is my cods:

``````var
//********* household variables****//
c         (long_name='consumption')
n         (long_name='hours worked')
w         (long_name='real wage')
m         (long_name='liquidity, m2 in household basket')
mcm       (long_name='money, fisical money in the basket of household')
id        (long_name='intrest rate of time and saving deposits')
d         (long_name='time and saving deposits and demand deposits')
er        (long_name='real exchang rate')
k         (long_name='capital')
ii        (long_name='intrest rate of government bonds and policy instroment')
pi        (long_name='inflation')
pif       (long_name='foreign inflation')
rk        (long_name='intrest of investment')
inv       (long_name='investment')
//********* firm variables****//
y         (long_name='Total output')
a
L         (long_name='Loan of intermediate firm from bank')
rl       (long_name='the rate Loan of intermediate firm from bank')
mc        (long_name='marginal cost of intermediate firm')
//********* bank variables****//
delthab   (long_name='default rate')
icb       (long_name='the rate of loan of bank from central bank')
Lcb       (long_name='the loan of bank from central bank')
rr        (long_name='legal deposit rate')
url       (long_name='the deffrence rate of debt to firm and deposit rate')
//********* open economy sector****//
or        (long_name='oil revenue')
//********* government and central bank sector****//
g         (long_name='government expenditure')
mui       (long_name='money growth rate')
dc        (long_name='Seigniorage')
fr        (long_name='foreign assets of central bank')
mb        (long_name='monetary base')
//********* shocks variables**********************//
shi_m     (long_name='money demand shocks')
deltha_en (long_name='nominal exchang rate growth shocks')
shi_i;
//----------------------Exogenous variables------------------------------------//
varexo
u_a u_m u_or u_g u_rr shi_url shi_pif shi_dc u_shi_i u_deltha_en;

//----------------------Parameters---------------------------------------------//
Parameters
betta
etta
delthab_b
url_b
rr_b
pi_b
pc_b
deltha
alphha
phi_ns
tetta
ltvf
n_b
g_b
be
ve
a_b
dc_mb
omegha
rho_m
rho_url
rho_a
rho_delthab
phi_delthay
rho_or
rho_g
rho_deltha_en
rho_pif
rho_dc
rho_i
rho_pi
rho_y
rho_mui
rhoshi_i
rho_rr
id_b
d_mcm
m_mcm
icb_b
rl_b
rk_b
mc_b
k_b
inv_b
w_b
c_b
m_b
y_b
mcm_b
d_b
mb_b
L_b
Lcb_b
er_bfr_b
fr_b

;
//-------------------Parametrization---------------------------------//
betta=0.965;
etta=0.0486807597119462;
delthab_b=0.008;
url_b=0.009;
rr_b=0.1;
pi_b=1.042246635;
pc_b=1.0154321;
deltha=0.055;
alphha=0.588;
phi_ns=2;
tetta=7;
ltvf=0.9;
n_b=1;
g_b=1;
be=0.05;
ve=1.3153;
a_b=1;
dc_mb=0.13;
omegha=0.351;
rho_m=0.8;
rho_url=0.8;
rho_a=0.9;
rho_delthab=0.8;
phi_delthay=0.8;
rho_or=0.779;
rho_g=0.875;
rho_deltha_en=0.8;
rho_pif=0.8;
rho_dc=0.8;
rho_i=0.5;
rho_pi=0.9;
rho_y=0.02;
rho_mui=0.8;
rhoshi_i=0.8;
rho_rr=0.8;
id_b=((((1-rr_b-delthab_b+(rr_b*delthab_b))*url_b)/(rr_b+delthab_b-(rr_b*delthab_b)))+1)^(1/4);
d_mcm=(1-(betta/pi_b))/(1-((betta/pi_b)*id_b))*((1-etta)/etta);
m_mcm=(d_mcm)^(1-etta);
icb_b=id_b/(1-rr_b);
rl_b=id_b+url_b;
rk_b=(1/betta)-1+deltha;
mc_b=(tetta-1)/tetta;
k_b=(alphha*mc_b*rk_b/(1+(ltvf*rl_b)))^(1/(1-alphha));
inv_b=k_b*deltha;
w_b=((1-alphha)/alphha)*rk_b*k_b;
c_b=((1-be)*w_b)^(1/ve);
m_b=(((1-be)*(1-(betta*id_b/pi_b))/(be*etta*(d_mcm^((-1)*etta))))^(-1/ve))*c_b;
y_b=k_b^alphha;
mcm_b=m_b/((d_mcm)^(1-etta));
d_b=mcm_b*d_mcm;
mb_b=mcm_b+(d_b*rr_b);
L_b=ltvf*((w_b*n_b)+(rk_b*k_b));
Lcb_b=(0.3333*mb_b);
er_bfr_b=(0.3333*mb_b);
fr_b=(0.3333*mb_b);

//----------------------Model Declaration Block--------------------------------//
model(linear);

m=etta*mcm+(1-etta)*d;

//labor supply//
phi_ns*n=w-(ve*c);

// fisical money demand//
((be*etta*(m_b^(-ve))*((d_mcm)^(1-etta)))*((-ve)*m+(etta-1)*mcm+(1-etta)*d+shi_m))+(betta/pi_b)*(1-be)*(c_b^(-ve))*((-ve*c(+1))-pi(+1))=(1-be)*(c_b^(-ve))*(-ve*c);

// deposit demand//
((be*(1-etta)*(m_b^(-ve))*((d_mcm)^(-etta)))*((-ve)*m+(etta)*mcm+(-etta)*d+shi_m))+(betta/pi_b)*(1-be)*(c_b^(-ve))*(id_b)*(((-ve*c(+1))-pi(+1))+id)=(1-be)*(c_b^(-ve))*(-ve*c);

//money demand shock//
shi_m=rho_m*shi_m(-1)+u_m;

//investment//
inv = (1/deltha)*(k-(1-deltha)*k(-1));

//Euler//
c=c(+1)-(1/ve)*(ii-pi(+1));

//prodution function//
y=alphha*k(-1)+(1-alphha)*n;

//factor demand//
w=k(-1)+rk-n;

//marginal cost//
mc=(((1/alphha)^(alphha))*((1/(1-alphha))^(1-alphha))*(rk_b^alphha)*(w_b^(1-alphha))/mc_b)*((1+(ltvf*rl_b))*((alphha*rk)+((1-alphha)*w)-a)+(ltvf*rl_b*rl));

//Loan of firm from bank//
L=(ltvf/L_b)*(((w_b*n_b)*(w+n))+((rk_b*k_b)*(rk+k)));

//the intrest rate of central bank to comercial one//
icb=(rl_b/icb_b)*(1-delthab_b)*rl-(rl_b*delthab_b/icb_b)*delthab;

//deposit intrest rate//
id=(1-rr_b)*(icb_b/id_b)*icb-(icb_b*rr_b/id_b)*rr;
rr=rho_rr*rr(-1)+u_rr;

//debt or firms to bank//
L=(d_b/L_b)*(1-rr_b)*d-(d_b*rr_b/L_b)*rr+(Lcb_b/L_b)*Lcb;

//the rate of debt to firm//
rl=((id_b/rl_b)*id)+url;

//the deffrence rate of debt to firm and deposit rate//
url=rho_url*url(-1)+shi_url;

//technology shoch//
a=rho_a*a(-1)+u_a;

//phillps curve//
pi=betta*pi(+1)+((1-omegha*betta)*(1- omegha)/ omegha)*mc;

//default rate//
delthab=rho_delthab*delthab(-1)+phi_delthay*y;

//oil export//
or=rho_or*or(-1)+u_or;

//government expenditure shock//
g=rho_g*g(-1)+u_g;

//monatary base According to sources//
mb=(dc_mb)*dc+(Lcb_b/mb_b)*Lcb+(er_bfr_b/mb_b)*(er+fr);

//monatary base According to expenses//
mb=(mcm_b/mb_b)*mcm+(rr_b*d_b/mb_b)*(rr+d);

//real exchange rate//
er=er(-1)+deltha_en+pif-pi;
deltha_en=rho_deltha_en*deltha_en(-1)+u_deltha_en;

//money growth rate//
mui=m-m(-1)+pi;

//foreign reserves of the central bank//
fr=fr(-1)-pif+(1/fr_b)*or;

//foreign inflation//
pif=rho_pif*pif(-1)+shi_pif;

//Deficit//
dc=rho_dc*dc(-1)+shi_dc;

//intrest rate target (monatary policy target)//
ii=rho_i*ii(-1)+rho_pi*(pi-pc_b)+rho_y*(y)+rho_mui*(mui)+shi_i;
shi_i=rhoshi_i*shi_i(-1)+u_shi_i;
//resource constraint//
y=(c_b/y_b)*c+(inv_b/y_b)*inv+(g_b/y_b)*g;

end;
//----------------------Initial Value of Endogenous Variables Block -----------//
initval;
c=0;
n=0;
w=0;
m=0;
mcm=0;
id=0;
d=0;
er=0;
k=0;
ii=0;
pi=0;
pif=0;
rk=0;
inv=0;
//********* firm variables****//
y=0;
a=0;
L=0;
rl=0;
mc=0;
//********* bank variables****//
delthab=0;
icb=0;
Lcb=0;
rr=0;
url=0;
//********* open economy sector****//
or=0;
//********* government and central bank sector****//
g=0;
mui=0;
dc=0;
fr=0;
mb=0;
//********* shocks variables**********************//
shi_m=0;
deltha_en=0;
shi_i=0;

end;
check;
//----------------------The Shocks Block---------------------------------------//
shocks;
var u_a;
stderr 0.01;
var u_m;
stderr 0.01;
var u_or;
stderr 0.01;
var u_g;
stderr 0.01;
var u_rr;
stderr 0.01;
var shi_url;
stderr 0.01;
var shi_pif;
stderr 0.01;
var shi_dc;
stderr 0.01;
var u_shi_i;
stderr 0.01;
var u_deltha_en;
stderr 0.01;
end;
//----------------------The Simulation Block-----------------------------------//
stoch_simul(periods=10000, irf=30);
``````

I dont know if this error comes from the way you copy your file in here ( I would suggest just uploading the mod file and not copy pasting the code in here) but for me there are many things not working in the way you setup the parameters. Could you please upload the file?

I did not find up load option it this site, how can I send you my file?

@zeynooo, This is how.

There was a wrong constant in the third-last equation that I deleted:
zeynooo.mod (7.7 KB)
Now your model features instability. You need to find out why.

Dear Professor
I really appreciate you.

Dear Pr. How can I realize such problem myself?