This paper provides first and second-order approximation methods for the solution of non-linear dynamic stochastic models in which the exogenous state variables follow conditionally-linear stochastic processes displaying time-varying risk. The first-order approximation is consistent with a...

We would like to propose a new framework for monetary policy analysis that encompasses, as a special case, the Neo-Wicksellian paradigm. A general form of an aggregate-demand equation reveals a role for liquidity, as well as less effective movements in future real rates with respect to current...