Hello.

I need some help in understanding the Bayesian estimation in dynare.

My questions are very basic.

First of all, the part of my code is as follows.

```
.....
log(e_w) = rho_w*log(e_w(-1))+sig_w*eta_w/100;
de_w = e_w - STEADY_STATE(e_w);
de_w2 = de_w^2;
y_ag = e_ta*(land_g*psi_g)^(pi_l)*((k_ag(-1))^(phi_a)*(h_ag)^(1-phi_a))^(1-pi_l);
psi_g = psi_g(-1)^rho_l * (exp(-alpha_l*de_w2)*v_z)^(1-rho_l);
v_z = ((z)^(gamma_z))/gamma_z;
.....
```

Here, I want to estimate `rho_l`

and `alpha_l`

through the Bayesian estimation.

In some literature, it seems that I saw that when estimating it, square terms are removed.

Moreover, square terms are within exp().

So, I’m not sure that we can trust the estimation results of the above code.

If not applicable, how can I correct this problem?

Also, in ‘Residuals of the static equations:’

should residuals be all zero?

I sincerely appreciate your help in advance.