I’m interested in computing an approximation to the policy function away from the deterministic steady state.
Dynare++ provides a way to do that using the –steps option discussed in Section 4.2 of the dynare++ manual. Since the regular version of dynare relies on dynare++ binaries, I was wondering whether it is possible to invoke that option in regular dynare somehow (I’m trying to avoid porting my regular dynare .mod file, which relies on a number features incompatible with ++…)?
If the answer is ‘no’ (as I fear), one alternative I’m considering (based on this thread) is to have dynare++ compute the fixed point of the decision rule corresponding to non-zero sigma, and then specify it in dynare’s steady_state_model block, with option nocheck selected. While in general I would not expect this to yield correct results (in line with the suggestion in the linked thread), the one case it could, in principle, work correctly is when it’s manually ‘fed’ a fixed point corresponding to non-zero sigma?
Thoughts / suggestions would be appreciated. Thanks in advance,
Pawel
ps. If I have a spare sec, I may compare the two (i.e. the dynare ‘hack’ and directly invoking dynare++) using a simple RBC model, in which case I will also post back the outcome.