Estimation problems

Hi professor, I was trying to estimate the parameters, but came across following issues.

  1. What does those red dots mean and why this happen? Does that mean something wrong with my estimation ? (I already added prior_trunc=0);

  2. Why bayes_irf graph has no confidence band? Also the pst s.d. are zeros for all shocks. Is that feasible?

Uploading: 2022-08-25 14.58.36.png…

  1. The posterior mean is very close to prior mean. Is that possible? Does that mean that there is something wrong with my model?

I am uploading my files for your reference. Thank you very much for your help. (82.2 KB)