Rank condition problems and purely BW models not supported


I met some problems when running these two models (nearly similar).

-The first one has the error message " purely backward models are not supported", but the rank condition is verified.
Permanent shocks don’t change anything, stochastic schocks don’t work, and one eigen value is close to zero.

-The other one doesn’t have any error message, but the rank condition isn’t verified.
Shocks don’t work, and 3 eigen values are close to zero.

I don’t undertand where the problems come from, i changed many initial values, i changed
some equations of the model, i put forward equations in place of backwards ones, and vice-versa… it isn’t better.

Thank you

stdbis.mod (2.96 KB)
std.mod (2.51 KB)