a method for finding the anchor points of bcc model in dea context

Anchor points are an important subset of the set of extreme efficient points of the production possibility set (p p s) in the data envelopment analysis (dea). they delineate the efficient from the inefficient part of the p p s frontier. the aim of this paper is to present a method to find anchor points of the p p s of the bcc model based on a searching weak supporting hyperplane passing through unit under consideration. then, one theorem is proved to generate a necessary and sufficient condition for identification of these points. finally, some numerical examples are demonstrated to show the applicability of the proposed method.