Chen, Po-Chi; Hsu, Shih-Hsun; Chang, Ching-Cheng; … - International Association of Agricultural Economists - IAAE - 2009
A multi-activity DEA model with variable returns to scale is proposed to provide information on the efficiency performance of organizations with inputs shared among several closely-related activities. The model is applied to study the case of 279 farmers’ cooperatives in Taiwan. The results...