Discuss implementing a steady_state_relation-block
Steady state finding in large economic models is hard. Currently, the user needs to manually implement a full steady state or reduce the problem and then call a solver. See e.g. https://forum.dynare.org/t/how-to-solve-steady-state-in-large-scale-dsge-models/12185/2
I wonder if it would be useful and feasible to introduce something like a
steady_state_relation-block that allows specifying analytical steady state relations that Dynare could use in the
_static-file to substitute out some variable and thus reduce the size of the problem (essentially introducing a model-local variable for the static model). An example would be
steady_state_relation; u=1; R=1/beta; Pi=1; i_nom=R*Pi; I=delta*K; end;
initval this would make finding a steady state much easier.