To be useful as a guide to behavior, a model that includes a relationship between x_t and z_t+1 must specify whether x_t is influenced by the expectation at t of z_t+1 or, that z_t+1 is inertially influenced by x_t. We show that, for a broad class of linear RE models, distinct causal...

It is clear that at present various versions of the Calvo (1983) model of price adjustment are dominant in monetary policy analysis'see, e.g., Woodford (2003). This is true despite well-known criticisms including Mankiw (2001) or Mankiw and Reis (2002) and the well-documented need for the...