Lee, Hsuan-Shih; Chu, Ching-Wu; Zhu, Joe - In: European Journal of Operational Research 212 (2011) 1, pp. 141-147
It is well known that super-efficiency data envelopment analysis (DEA) approach can be infeasible under the condition of variable returns to scale (VRS). By extending of the work of Chen (2005), the current study develops a two-stage process for calculating super-efficiency scores regardless...
