中文摘要：

中间商从生产和交易的分工中产生,在具有买方垄断性质的农产品市场上,它们不仅改变了农产品供应链的收益分配格局,还改进了农产品供应链的绩效。本文通过分析奶站的定价机制及其对生鲜乳市场社会福利的影响证实了这一观点。研究还表明,农产品中间商尽管能降低农产品市场的福利损失、减少企业与农户之间的交易费用,但却使农户处于较低的盈利水平和较高的＂被剥削＂状态。因此,建议政府在重视效率的同时应兼顾公平,即在鼓励和支持农产品中间商发展的同时,规范其经营行为,改善农民的盈利状况,使农民进一步享受市场化带来的福利。

英文摘要：

On the market of agricultural products which was monopolized by buyers,middlemen arising from the division of production and trade not only changed the interest distribution pattern of agricultural supply chain,but also improved the performance of agricultural supply chain.This paper confirmed above viewpoint by analyzing the pricing mechanism and the welfare change of the milk station in the raw milk supply chain.It is also showed that although agricultural middlemen could reduce the welfare loss of markets for agricultural products and the transaction costs between enterprises and farmers,the emergence of agricultural middlemen made farmers stay at a relatively low level of profitability and higher ＂being exploited＂ status.Therefore,the government should balance efficiency and fairness,regulate the business behavior of middlemen,improve the profitability of farmers,enable farmers to further enjoy the benefits of marketization,while encouraging and supporting the development of the agricultural middlemen.