NaN in results estimation

Stochastic simulations
#1

Hi guys
Excuse me, when we have a large number of NaN
in the output results, where is the problem of modeling?

I attached the results for more understanding

question.pdf (110.9 KB)

#2

Without the mod-file it is impossible to tell. Often it’s a unit root.

#3

model_diagnostics shows a singularity in your model. You should check what causes it.