AN APPLICATION OF DATA ENVELOPMENT ANALYSIS IN TELEPHONE OFFICES EVALUATION WITH PARTIAL DATA

The presence of partial data motivates the need to investigate how suc h factors can be incorporated into the existing measurement models. In this paper, a procedure is proposed for incorporating a set of factor s with partial data into the DEA structure and restricting factor weig hts. The first DEA formulation is a complicated non-linear model issue d from the set of partial data. In order to transform the first formul ation into an ordinary linear programming model, both a linear scale t ransformation and variable change technique are used. The resulting li near programming model is then applied to the efficiency evaluation of telephone offices. (C) 1998 Elsevier Science Ltd. All rights reserved .