where yt is a vector of endogenous variables, E (. |Ft ) is the expectations operator, Ft
the publicly available information at time t, and wt is a vector of forcing variables. For
example, log-linearized version of dynamic general equilibrium models (to be discussed) can all be written as a special case of this equation with plenty of restrictions on the
coefficient matrices A and B. In the typical case where wt are serially uncorrelated and
the solution of the RE model can be assumed to be unique the RE solution reduces to
the vector autoregression (VAR)