McCAUSLAND, William - Centre Interuniversitaire de Recherche en Économie … - 2008
I introduce the HESSIAN method for semi-Gaussian state space models with univariate states. The vector of states a=(a^1, ... , a^n) is Gaussian and the observed vector y= (y^1 , ... , y^n ) need not be. I describe a close approximation g(a) to the density f(a|y). It is easy and fast to evaluate...