关键词: 供应链, 非对称信息, 商业信用, 信息甄别, 激励

Abstract: For the adverse selection in the multi-period collaboration of supply chain,the design of incentive mechanism based on trade credit contract by the supplier was investigated.The one-stage information screening model was built and solved.Based on the above,the two-stage dynamic game mechanism of supply chain under asymmetric information was discussed,and the information relevance between different stages was analyzed based on Bayesian information updating.The first-stage and second-stage incentive models based on trade credit were respectively proposed and analyzed,and the trade credit incentive contracts in the two stages were obtained.The effects of trade credit contracts on policies and profits of the supply chain under different collaboration modes were compared.The influence of relevant parameters on the contracts was discussed.The results showed that trade credit contract designed reasonably could inspire the retailer to reveal its true cost and prevent adverse selection happening,as well as improve profits of the supply chain.

Key words: supply chains, asymmetric information, trade credit, information screening, incentive