英文文献：Examining the Productivity Growth of Agricultural Cooperatives
英文文献作者：Pokharel, Krishna,Featherstone, Allen
英文文献摘要：
This research examines productivity growth of agricultural cooperatives using the Malmquist productivity index (MI) under constant returns to scale and the biennial Malmquist productivity index (BMI) assuming variable returns to scale. A nonparametric data envelopment analysis approach is used to calculate both the MI and BMI. Results from the two methods are compared to evaluate whether the decomposition into technical and efficiency changes are similar under the MI and BMI methods.