Inverse DEA based on cost and revenue efficiency

Classical inverse DEA models are based on only observed input-output data and technical efficiency index like their origins, namely, classical DEA models. However, some important insight can be gained if price information is available in the classical efficiency analysis. This article deals with the inverse DEA problem when price information is available. It provides the theoretical foundation of the problem and illustrates it by some numerical examples. Proposed models guarantee not only fixed technical efficiency but also unchanged cost efficiency while process of input estimation associated with a perturbed output. A real world data empirical illustration shows pertinence and future applicability of proposed approaches.