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 ?
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.