Interval Inefficiency Measure in DEA with Interval and Ordinal Data

The purpose of this paper is to introduce interval inefficiency for Decision Making Units (DMUs) with interval and ordinal data. To obtain the interval inefficiency we can construct a pair of Tow-level mathematical programming models, whose objective values represent the lower bound and upper bound of the inefficiency scores.

کلیدواژه ها:

Data Envelopment Analysis (DEA) ، Tow-level programming ، Imprecise data ، Interval efficiency