I am trying to simulate the 2nd order approximation for my model and I keep getting ‘NaN’ for my moments of simulated variables. However, I am able to simulate under the 1st order approximation. Additionally, is it strange that under the 1st order approximation, I keep getting different means?
With regards to the second question about the changing mean, everytime I perform a simulation – I keep getting different simulated moments. I wanted to find out if there was any way I could avoid this as I am doing a policy analysis?