碳交易政策下供应链减排研发的微分博弈研究

Differential Game Analysis on Supply Chain's Strategy of Carbon Emission Reduction R&D under Carbon Trading Policy

考虑碳交易政策下2个供应商和2个制造商组成的两级供应链,各企业可选择研发竞争、水平合作研发、垂直合作研发和全面合作研发4种减排研发形式,并引入碳排放量的动态变化,构建相应的微分博弈模型。从碳排放存量、供应商的利润、制造商的利润以及供应链的总利润4个方面,比较不同减排研发形式的效果,得出供应链减排研发的策略。研究表明:全面合作研发是供应商的最优减排研发策略,研发竞争是制造商的最优减排研发策略,水平合作研发和垂直合作研发只能是供应链的次优减排研发策略。

Given carbon trading policy,a two-level supply chain consists of two suppliers and two manufactures.Each firm in the supply chain can choose one organization of carbon emission reduction RD,including RD competition,horizontal RD cooperation,vertical RD cooperation and general RD cooperation.Taking into account dynamic change of carbon emission,four differential game models are constructed respectively.From the view of stock of carbon emission,supplier＇s profit,manufacture＇s profit and supply chain＇s total profit,the optimal choice of carbon emission reduction RD for each firm is analyzed.It is shown that general RD cooperation is the optimal choice for the supplier;RD competition is the optimal choice for the manufacture,but both horizontal RD cooperation and vertical RD cooperation can only be the second best choice for each firm.