Note—A Note on “The Use of Categorical Variables in Data Envelopment Analysis”

Abstract

A variant of Banker and Morey's (Banker, R. D., R. C. Morey. 1986. The use of categorical variables in data envelopment analysis. Management Sci. 32(12, December) 1613–1627.) DEA model for controllable ordinal outputs. As opposed to the original model, this version allows the comparison of a Decision Making Unit (DMU) to other DMU's operating at equal or higher levels of the ordinal outputs.