Supply chain coordination mechanisms under asymmetric information with retailer cost disruptions

A two-level supply chain model involving one supplier and one retailer with linear demand is developed, and supply chain coordination mechanisms under asymmetric information （the retailer＇ s cost structure is asymmetric information） are proposed by employing game theory in two scenarios： coordination mechanisms under asymmetric information in a regular scenario （without disruption）; and coordination mechanisms under asymmetric information in an irregular scenario （ with retailer cost disruptions）. It is optimal for the supply chain to maintain the original production plan and to guarantee a steadily running system if variations of retailer costs are sufficiently low and do not exceed an upper bound. This shows that the original production plan has certain robustness under disruptions. Decisions must be re-made if a retailer＇ s cost change is greater and exceeds an upper bound. Impacts of retailer cost disruptions on the order quantity, the retail price, the wholesale price and each party＇ s as well as the system＇ s expected profits are investigated through numerical analyses.

加强饮水资源管理 确保城市饮水安全

水资源保护、饮水问题,一直以来是人们关注的热点。近年来,我国部分地区和城市频频发生的水资源污染事件,向人民敲起了警钟。本文就如何加强水资源保护,确保城市饮水安全提出了建议。

战争阴云动摇油市走向——美伊对抗对石油市场的影响

尽管我国每年从伊拉克的原油进口量仅占总进口量的1％左右,但美国与伊拉克的对抗一旦升级为战争,在国际石油市场的动荡中,中国也不可能稳坐钓鱼台,而应针对趋势发展。