Publication

Dynamic stochastic general equilibrium (DSGE) models with generalized shock processes have been a major area of research in recent years. This paper shows that the structural parameters governing DSGE models are not identified when the driving process behind the model follows an unrestricted vector autoregression (VAR). This finding implies that parameter estimates derived from recent attempts to estimate DSGE models with generalized driving processes should be treated with caution, and that there exists a tradeoff between identification and the risk of model misspecification.