Research On Coordination Of Agricultural Products Supply Chain Considering Capital Constraints Under The Blockchain Technology

Because of the long growth cycle of agricultural products and the need to invest more materials in the early stage of production,farmers are faced with greater financial pressure.At the same time,agricultural products are susceptible to the impact of natural disasters,leading to greater output uncertainty in the agricultural supply chain,which makes it more dificult for farmers to obtain bank financing and hinders the development of agricultural supply chain.The emergence of supply chain finance enables farmers to obtain loans from banks relying on the credit of leading enterprises and other core enterprises,and improves the problem of financial constraints of farmers.However,due to the uncertainty of the output of agricultural products and the general existence of information asymmetry among the members of the agricultural supply chain,it is easy to lead to financial moral hazard,which makes the bank loan willingness decline,and farmers are faced with financing constraints again.It also makes the supply chain of agricultural products vulnerable to the impact of default risk,and destroys the coordination and order among the members and elements of the supply chain of agricultural products.With the characteristics of openness,transparency,traceability and imtamability,blockchain can achieve information transparency,eliminate information asymmetry between nodes,thereby reducing the risk of default among supply chain members and reducing the occurrence of financial moral hazard.However,the introduction of blockchain technology will have a certain impact on the equilibrium decision-making of each subject in the supply chain and the revenue of the upstream and downstream of the supply chain,so that the agricultural supply chain cannot reach the coordination state.Therefore,the introduction of supply chain contract is considered to coordinate the agricultural supply chain with capital constraints and output uncertainties under the blockchain technology.Based on the analysis of domestic and foreign research status of agricultural supply chain,supply chain finance,blockchain technology,supply chain contract coordination and other relevant theories of agricultural supply chain,supply chain finance,blockchain,and supply chain contract coordination,The characteristics of agricultural supply chain,the mode and operation process of supply chain finance,the advantages of supply chain finance enabled by blockchain,and the classification and role of supply chain contract are clarified.By analyzing the development status of agricultural supply chain finance,it is found that there are some problems such as information island,lack of trust,adverse selection and moral hazard.Therefore,the blockchain technology is introduced to analyze the agricultural supply chain finance model under the blockchain technology,and the main body and advantages of the agricultural supply chain considering the financial constraints under the blockchain technology are analyzed.Through each building block chain technology under considering capital constraints of the agricultural products supply chain decentralized decision and centralized decision model,analysis of peasant household and the retailer’s optimal decisions and optimal profits,and through the cost sharing contract and cost sharing-a combination of revenue sharing contract for agricultural products supply chain coordination,in order to achieve optimum state of centralized decision-making,And put forward the corresponding supply chain coordination strategy.On this basis,Matlab software was used for simulation analysis to explore the impact of parameters such as agricultural product yield rate,blockchain application cost and blockchain value gain on optimal decision making and optimal profit,and a numerical example was used to verify the effectiveness of contract coordination.The results show that the combination contract of cost-sharing and revenue-sharing can make the agricultural supply chain with capital constraints and output uncertainties under the blockchain technology reach a coordinated state.The amount of production input,the income of farmers and the income of sellers decrease with the increase of the application cost of blockchain,and the purchase price of agricultural products is opposite when the contract is coordinated.The amount of production input,purchase price,farmers’ income and sellers’ income increase with the increase of blockchain value gain.The coefficient of cost sharing only positively affects the purchase price of agricultural products,while the coefficient of revenue sharing positively affects the seller’s income and negatively affects the purchase price of agricultural products.The use of supply chain contract for coordination can reduce the financial moral hazard and the default risk among supply chain members of agricultural products supply chain under the blockchain technology,alleviate the problem of farmers’ funds constraint,and make the agricultural products supply chain achieve a coordinated and orderly state.This paper introduces blockchain technology into the agricultural product supply chain,considers output uncertainty and financial constraints,analyzes the operational decisions of farmers and sellers,and uses contracts to coordinate the agricultural product supply chain,which supplements the shortcomings of agricultural product supply chain finance,which has certain academic value.