基于B-S模型的订单农业供应链协调机制研究

基于订单农业特点及实践中普通存在的"保底收购,随行就市"订单价格机制,构建了"公司+农户"型订单农业供应链的决策模型.研究发现传统的"保底收购,随行就市"的价格机制并不能很好地协调此类"公司+农户"型订单农业供应链.为此,提出了一种"B-S期权定价+生产协作+保证金"的合同机制来协调此类订单农业供应链.研究结果表明,公司可以通过套期保值工具——期权来降低其市场风险,从而保证公司、农户都能获得相对稳定的收益,增强"公司+农户"型订单农业供应链的稳健性.另外,实施该协调机制后,"公司+农户"型订单农业供应链可以实现完美协调,并且公司与农户双方的利益均得到改善.

Contract-farming supply chain coordination mechanism based on B-S model

The decision making model for "Company + Farmers" Contract-Farming supply chain is proposed by taking into consideration the characteristics of Contract-Farming and the popular protection price contract in practice.We find the traditional protection price contract can not fully coordinate the contract farming supply chain,which inspiring us to develop a kind of "B-S option pricing + production collaboration + guarantee money" contract.The results show that option hedging can help to reduce the market risk and achieve relative stable revenues of both the company and the farmer,so as to enhance the robustness of the "Company + Farmers" Contract-Farming supply chain.In addition,with the proposed B-S option pricing contract,the perfect coordination of "Company + Farmers" contract-farming supply chain,as well as the improving of the benefits of both the company and the farmer,can be achieved.