Least Orthogonal Distance Estimator of structural parameters in simultaneous equation models

The aim of this paper is to present a consistent estimator of parameters in simultaneous equation model, based on characteristic roots and vectors of a matrix derived from the so called over-identifying restrictions. The Least Orthogonal Distance Estimator presented here is a more recent development of its original limited information version. The occasion, for reviewing it, has been given by its extension to a full information context which is here completely formalized and by the very encouraging results of recent simulation experiments.