Research On Decision-making Models And Coordination Strategies Of Innovation Investment For Green Supply Chain

With the increasing global demand for green development,governments of around the world have put forward policies to promote green development,successively proposed carbon neutralization target,and constantly strengthen environmental protection education.With the improvement of environmental protection awareness,the demand for green products is also increasing.For the supply chain enterprises,they must seize the market opportunity by producing green products,so the traditional supply chain management has to be transformed into green supply chain management,which can protect environment,optimize resource allocation,improve economic benefit and fulfill corporate social responsibility.Green innovation is the precondition of producing green products and the key to promote green supply chain management.Innovation inevitably requires investment of resources,and there is risk of failure,so supply chain enterprises will consider whether to invest in innovation.This paper starts with the decision-making of non-cooperative innovation input of supplier and manufacturer,and analyzes the innovation investment strategies of supplier and manufacturer under non-cooperative innovation,and then constructs the cooperative innovation decision-making model based on cost-sharing contract from the perspective of cooperation.The transfer of dominant power and the fair preference of member enterprises is an important factor affecting profit distribution.Therefore,the decision-making and coordination of green supply chain innovation input under different dominant modes and considering fair preference are further studied.Firstly,decision-making models of green supply chain non-cooperative innovation investment based on supplier and manufacturer are constructed,and the equilibrium results of each model are compared and analyzed.Based on the equilibrium result,the green innovation strategies of supplier and manufacturer are analyzed and the innovative input strategies of supplier and manufacturer under fixed or variable supply prices are discussed.supply prices.It is found that under non-cooperative game,manufacturer choose to implement green innovation at fixed supply prices,but not under variable supply prices.A cost-sharing based,decision-making model of green supply chain cooperative innovation investment is constructed.The optimal government subsidy coefficient is given under centralized decision-making,and the green price ratio is used to analyze the welfare of consumers.A numerical example is adopted to analyze the equilibrium results of each model,and the influence of each parameter on the innovation investment and the optimal profit of supplier and manufacturer is also studied.Secondly,considering the government's green subsidy and manufacturer's sales effort,this paper studies the dominant mode and coordination strategy of green supply chains.We discuss the influence of government's green subsidy policy,supplier's innovation input and manufacturer's sales effort on the pricing and sales volume of new products and the overall profit of supply chain member enterprises and systems under two different dominant modes."Revenue Sharing-Cost Sharing" contract is designed to achieve perfect coordination between the supplier and the manufacturer under their respective dominant models.A numerical example is used to further analyze and compare the equilibrium results of each model and verify the correctness of the model.Thirdly,when the manufacturer has fair preference,a reward and punishment contract model based on the green degree of the product provided by the supplier is constructed.This paper analyzes the influence of manufacturer's fair preference degree on product green degree,product price,manufacturer's profit,supplier's profit and supply chain whole profit when the green degree of product provided by supplier is larger or smaller than the standard of manufacturer's demand,and discusses the coordination conditions under different product green degree.The difference of negotiation ability and discourse power between supplier and manufacturer will lead to the disparity of the channel power.Therefore,by choosing reference points of different fairness preferences,further research is conducted to analyze the impact of the channel power disparities between supplier and manufacturer impact on overall profit of the green supply chain.The results show that when the manufacturer pays equal attention to equity and self-interest,the overall profit of the green supply chain is the largest,and the coordination of the supply chain can be realized;and that the channel power disparities between the participants in the green supply chain has significant influence on the overall profit.The research results are verified by numerical example analysis.Lastly,an example analysis is carried out based on the research background of the green supply chain("AB green supply chain")which consists of a new energy vehicle company A and a power battery company B.By collecting the management data of companies A and B,the innovation investment decision-making model constructed in this paper is applied to analyze the innovation investment strategies of these two companies,so as to verify the scientificity and rationality of our research results.Based on the analysis of the innovation input of AB supply chain and the public opinion of consumers,the countermeasures and suggestions about the innovation input of AB supply chain are given.This work also provides theoretical basis and decision-making reference for the green innovation decision-making of the new energy vehicle supply chain.