中文摘要：

在双渠道供应链中研究制造商和零售商之间的定价策略与协调问题。比较分析集中决策和分散决策情形下制造商与零售商的决策策略；探讨网络渠道分销效率对各均衡解的影响；通过改进后的收益共享契约分析供应链协调问题；通过算例验证改进后的收益共享契约可以实现双渠道供应链的协调，且制造商和零售商均能够实现帕累托改进。

英文摘要：

In the dual channel supply chain, the pricing strategy and the coordination between manufacturers and retailers are studied. First of all, the centralized decision-making and decentralized decision-making situation decision strategy of manufacturers and retailers are comparatively studied. Secondly, the efficiency of network channel distribution effect on the equilibrium so- lution is discussed. Then, the improved revenue sharing contract supply chain coordination problem is analyzed. Finally, a nu- merical example verifies that the improved revenue sharing contract can achieve the double channel of the supply chain coordination, and manufacturers and retailers are able to realize the Pareto improvement.