Note-A Note on The Use of Categorical Variables in Data Envelopment Analysis

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.3212, 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.