I am trying to simulate the growth paths of variables under different policy scenarios. In Scenario 1, I introduced a technology progress shock; in Scenario 2, I added the growth of power transmission efficiency (tau) on top of the technology progress. However, the results show different initial values but converge to the same terminal value, which is opposite to the scenario I intended to construct. It seems that the perfect foresight simulation has backtracked the process using the same steady-state solution. How should I set it up correctly? Thanks
Without seeing the codes it is impossible to tell. You most likely called steady after your initval block, which will induce the steady state to be used.