Research On Fresh Agriculture Products Supply Chain Coordination Under The Model Of Third Party Logistics

As a kind of perishable product,fresh agri-products are apt to deteriorate and not suitable for long distance transportantion and the supply and demand characteristics are distinct.The production of fresh agri-products are influenced by many nature factors,such as rainfall,tempreture and etc.The demand of fresh produce is universality and often influenced by freshness,and presents a trend of diversity,quantification and dynamics.Perishable characteristics of fresh agricultural products made necessary to use professional and high level logistics service during its circulation process,oherwise,both the quantity and quality of the fresh agricultural products will decrease.which will cause out of stock and low level of freshness in the terminal markets and finally led to high consumer purchasing cost and bad influence on consumers’ quality of life.Thus,improve the logistics service level is crucial for fresh agricultural products supply chain,but generally logistics providers will not improve its level of freshness-keep efforts to benifit the whole supply chain spontaneously while bear all the cost himself.Because in the decision-making process,maximize their profits are the supply chain members goals,improve freshness-keep effort and bear all the cost alone is obviously not a wise choice for logistics service providers.in addition.the natural competitive relationship between supply chain members can also lead to multiple marginal effects which will lead to overall supply chain profit losses.Therefore,it is necessary to design proper supply chain contract to motivate logistics service providers improve their fresh effort level and improve the overall performance of the supply chain.Comprehensive consideration of fresh agricultural product features.characteristics of supply and demand and features of supply chain,we investigate a three-level supply chain consist of a supplier,a third party logistic provider and a retailer by using game theory and contract theory to study the decision-making and coordination of the supply chain.In the case of non-contract decentralized decision making.the game model between supplier and third-party logistics service provider and retailer is constructed.We found that:in the case of output and demand are determined.through logistics servic quantity discounts and freshness effort cost sharing contract can achieve the goal that the optimal retail price and optimal preservation efforts level in decentralized decision making equal to the corresponding values of centralized decision-making,but pareto improvement can not be achieved and by sharing part of retailer’s profit to supplier we realized the perfect coordination and pareto improvement.In the case of output random,the profit of supply chain system in decentralized decision making is less than that in centralized model,but the plan meet rate are equal and by using the transport-market clearance contract and wholesale-market clearance contract can realize the supply chain perfect coordination and pareto improvement.Finally,an numerical method is given to demonstrate the sensitivity analysis of the proposition and the important parameters.