Hi, I have several questions, and I apologize for my basic questions:

1)if I want to simulate permanent shocks, there is two way I think:

a)using initval and endval and using simul

b)using persistency parameter to one .i.e:log(P_e)=log(P_e(-1))+epsilon and using stoch simul.

what is the difference between a and b? and which I should use?

2)how to simulate temporary and permanent shock simultaneously? In this context, I need a sample code.

3)I calculate analytically steady state for my model. if I use initval and endval the dynare steady state is different from mine. but if I use the persistency parameters to one, steady-state values are equivalent.

initval and endval dynare code

simulation_nodebt.mod (12.4 KB)

use the persistency parameter to one dynare code

hi.mod (7.7 KB)

very very thanks.