In this paper we review the evolution of macroeconomic modelling in a policy environment that took place over the past sixty years. We identify and characterize four generations of macro models. Particular attention is paid to the fourth generation - dynamic stochastic general equilibrium...

Dynamic stochastic general equilibrium (DSGE) models have become a widely used tool for policymakers. This paper modifies the global identification theory used for structural vectorautoregressions, and applies it to DSGE models. We use this theory to check whether a DSGE model structure allows...

We summarize the history of macroeconometric system modelling as having produced four generations of models. Over time the principles underlying the model designs have been extended to incorporate eight major features. Because models often evolve in response to external events we are led to ask...