Optimising O2O Supply Chain Strategies Through Cost-Sharing Contracts: Strategic Analysis and Empirical Insights Journal title: Journal of Engineering Management and Systems Engineering Authors: Fangfang Guo, Zeyi Yang, Wei Qin, Yuanyuan Wang, Siyi Chen Subject(s): Management Science/Operations Research, Production, Operation and Manufacturing Management, Operating Systems, Industrial Management, Engineering, Multidisciplinary, Operations Research & Management Science, Technology - Production engineering