What does dynare return as "Variance"?

Dynare help (legacy posts)
1

I have written the simplest code with TFP shock, where rhoA=0.97 is persistence.
The theoretical variance should be
theoretical variance=1/(1-rhoA^2)=16.9205
But dynare returns:

"
MOMENTS OF SIMULATED VARIABLES

VARIABLE MEAN STD. DEV. VARIANCE SKEWNESS KURTOSIS
A -0.240878 4.598555 21.146709 0.434870 0.629554
"
so, what is “21.146709”, and why mean is negative?
check.mod (215 Bytes)

2

In your case it returns moments from a simulation as periods>0.
You used simulated moments with

This is not sufficient for asymptotics. Use e.g.

and you will be much closer to the theoretical values