Chiu, Ching-Ren; Liou, Je-Liang; Wu, Pei-Ing; Fang, … - In: Energy Economics 34 (2012) 5, pp. 1392-1399
In this paper, we present an alternative analysis framework to evaluate the effects of technology heterogeneities and undesirable output on environmental efficiency measurement. The proposed framework combines the directional distance function and a meta-frontier analysis. It can be used to...