IRF graph

Dear all,

  1. I wonder if time period of IRF graph begins form the point of time the shock occurred(t=1), not initial period(t=0) before shock.
    If so. how can I draw the graph starting at t=0 ?

  2. When I do simulation, like "stoch_simul(order=1,irf=40) a b c d e; "
    some IRF graph are missing(does not appear). What is the reason? because of no change in the variables?

thanks a lot.
Have a nice day.

  1. You have to do that manually using the IRFs stored in oo_.irfs by plotting [0,oo_.irfs…]
  2. Dynare suppresses variables for which the responses are below a threshold. See the manual on how to vary this threshold.