Considering the two-level e-commerce supply chain composed of an e-commerce platform and a third-party logistics service provider as the research object, aiming at the moral hazard problem caused by the third-party logistics service provider's complete control of its own logistics service level, this paper analyzed the strategy of using blockchain to prevent the moral ha-zard of the third-party logistics service provider. With the help of the logistics service level monitoring framework based on blockchain, considering the two scenarios of adopting blockchain and not adopting blockchain, it established the Stackelberg game model between e-commerce platform and the third party logistics service provider under decentralized decision-making, and studied the changes of supply chain profits before and after the application of blockchain and the correlation with technology cost input. After that, it verified the correctness of the conclusion by numerical analysis. The results show that when the cost input of blockchain is controlled within a certain range, the application of this technology can effectively reduce the moral hazard of the third-party logistics service providers, improve the profits of the whole supply chain, promote the improvement of the profits of each node of the supply chain, and help the healthy and orderly development of the supply chain.

[2021-04-05] Printed Article /doc/2020.05.0085/v2