中文摘要：

以产业化方式经营农业已成为现代农业的重要特征。在＂公司＋农户＂的产业化组织模式中,通过合同建立交易关系是普遍的组织形式。基于交易成本经济学的理论逻辑分析表明：受农业特性以及农产品市场结构转变的影响,随着组织形式向科层或市场集中,组织成本曲线将出现非线性的增长趋势。采用合同交易方式是公司、农户在既定的约束条件下,对交易成本和管理成本进行权衡的选择结果,由此获得相对于企业与市场的组织优势。但在实践中,契约合作型＂公司＋农户＂的组织形式所蕴涵的优势并非完全无条件地展示,组织优势的发挥依赖于好的治理机制。

英文摘要：

Agricultural industrialization is becoming an important feature of modem agriculture. To establish trade relations through a contract is an ＂enterprise plus farmers＂ mode. The paper explains the mech- anism of contract farming based on a simplified analytical framework from transaction costs economics per- spective. Analysis shows that by the impact of agricultural properties and changes in market structure, or- ganizational cost curve will be non-linear trend. Trading through contract is the result that the company and farmers weigh the transaction costs and management costs in the established conditions. As the result, it ob- tains the relative advantage to the firm and the market. But ＂Enterprise plus Farmers＂ is ＂a mixture of future and risk＂. It has potential advantages, but do not entirely unconditionally display in practice.