The 1st and 2nd order approximation give

but 3rd order approximation doesn’t. How to get the theoretical mean when I use 3rd order?

The 1st and 2nd order approximation give

but 3rd order approximation doesn’t. How to get the theoretical mean when I use 3rd order?

Most probably because you are requesting theoretical moments, which are not yet implemented at

If you use the

option, the field will be there.

Dear Prof. Pfeifer,

Thank you for the answer.

I add the option “periods” as follows,

```
stoch_simul(order = 3, periods=0, nograph, irf=0);
```

following the Dynare manual, which says “If different from zero, empirical moments will be computed instead of theoretical moments.”

However, I still couldn’t find `oo_.mean`

Did I make a mistake using the “periods” option?

Your setting of

is NOT

Oh I misread it. Thank you.