Add MPC to simulation in ConsGenIncProcessModel (#170)
Add MPC to simulation in ConsGenIncProcessModel (#170)

The MPC is calculated and stored as an attribute (MPCnow) in some models, but this was omitted in ConsGenIncProcessModel.  As it turns out, this functionality is necessary for an exercise/notebook that is being prepared for NBER SI.
econ-ark/HARK,econ-ark/HARK