The Efficiency of Organic Vegetable Supply Chain - Analysis Based on Dynamic Network SBM Model

Considering the structural characteristics and decision preference of the organic vegetable supply chain, this study applies three-division DNSBM (Dynamic Network Slack-based Measurement) model under the assumption of variable returns to scale. The overall efficiency, period efficiency and divisional efficiency are analysed based on a sample of 10 companies engaged in production and marketing of vegetable during 2012-2014. The main conclusions are as follows: firstly, the overall efficiency 10 DMUs is ineffective, and the organic vegetable supply chain of these 10 companies need to be improved further. Secondly, the efficiency of production division and marketing division are relatively lower. Thirdly, though period efficiency is ineffective, its score is increased year by year. This study corroborates that the DNSBM model is feasible to evaluate the efficiency of organic vegetable supply chain and applicable to research in other industries fields.