Chiu, Yung-Ho; Lee, Jen-Hui; Lu, Ching-Cheng; Shyu, … - In: Energy Policy 51 (2012) C, pp. 349-357
This study develops the hybrid meta frontier DEA model for which inputs are distinguished into radial inputs that change proportionally and non-radial inputs that change non-proportionally, in order to measure the technical efficiency and technology gap ratios (TGR) of four different regions:...