Research On Subsidy Mechanism And Synergy Effect Of Express Packaging Supply Chain In China

The express industry has brought great economic and social benefits to people,but at the same time,because of the low cost of express delivery packaging,difficult recovery,non-universal recycling and other factors,express delivery packaging has brought serious resource,environment and social problems.Therefore,coordinating the economic,environmental and social sustainable development goals of express packaging has become an important issue for the government.To solve this problem,this paper studied the impact of government subsidies on the synergy of express packaging supply chain.Based on evolutionary game and system dynamics,this paper constructed the subsidy mechanism and system dynamics model of synergy of express packaging supply chain based on evolutionary game,and discussed the decision-making choices of manufacturers,consumers and recyclers in the game.Based on the simulation analysis of the development status of express delivery packaging in China,the optimal subsidy policy of express delivery packaging supply chain is further obtained.It is found that in the express delivery packaging supply chain:（1）the evolution strategy of manufacturers and recyclers is closely related to the choice of consumers,and their choice changes with the change of consumers’strategic choice.（2）CO₂ emissions in the end-of-life stage of express delivery packaging supply chain account for about 83.9%-91.8%and incineration as the main carbon emission source of end-of-life reduce by 10%-19%compared with no government subsidy.（3）the profit of recyclers is most affected by government subsidies,and incineration power generation is one of the main economic sources for recyclers.As the recycling rate of express delivery packaging increased from 2%to 32%,the income from incineration power generation decreased from about 25-40%to 15-25%of the total income.（4）the implementation of government subsidies is beneficial to improve social welfare,which has the biggest impact on consumers’surplus.（5）the comprehensive scenario subsidy is better than the single scenario subsidy,but it will bring a serious cost burden to the government.In the single scenario,the target of government subsidy depends on the level of government subsidy,which is subsidized to consumers at low and medium levels,and recyclers at high levels.This paper put forward reasonable suggestions and measures on how to improve the green level of express packaging,reduce the environmental harm of express packaging and promote the sustainable development of express packaging from three aspects:establishing the extended responsibility system of producers and consumers,increasing the support to relevant subjects and improving the express packaging recycling system.