碳交易政策下考虑碳减排技术溢出的建筑供应链减排决策研究

Research on Emission Reduction Decision of Construction Supply Chain Considering Carbon Emission Reduction Technology Spillover Under Carbon Trading Policy

为研究碳交易政策下存在碳减排技术溢出时建筑供应链减排决策问题,建立了由一个总承包商和一个分包商组成的二级建筑供应链。通过逆向求解法则得到在分散决策、协调决策和集中决策下总承包商和分包商的减排量、收益分配比例及供应链总利润;对比分析不同决策模型下均衡解。研究表明:在集中决策下总承包商和分包商的减排量最高,建筑供应链总利润最大,且都随着减排技术溢出率的增大而增大;减排技术溢出效应的存在不完全会提高供应链的减排效率;收益分配比例只有在分散决策时受溢出效应的影响;利用Matlab软件仿真分析验证了模型的正确性。

A secondary building supply chain consisting of one general contractor and one subcontractor was established to study the emission reduction decision-making problem of building supply chain when carbon emission reduction technology spillover exists under carbon trading policy.Firstly,the emission reduction,income distribution ratio and total supply chain profit of general contractor and subcontractor under decentralized decision making,coordinated decision making and centralized decision making are obtained by inverse solution rule.Secondly,the equilibrium solutions under different decision models are compared and analyzed.The results show that under centralized decision-making,the emission reduction of general contractors and subcontractors is the highest,and the total profit of construction supply chain is the largest.In addition,the emission reduction and the total profit both will be increased with the increase of emission reduction technology spillover rate.The existence of emission reduction technology spillover effect will not completely improve the emission reduction efficiency of the supply chain.The proportion of income distribution is affected by spillover effect only in the decentralized decision-making.Finally,the correctness of the model is verified by Matlab software simulation.