竞争环境下零售商双渠道选择与定价策略

在竞争环境下,零售商面对双渠道的选择和定价策略的拟定,需要依据其利润实现和供货稳定性情况,根据目标市场的接受程度,选择合适的直销渠道和零售渠道。零售商在定价策略上,可以根据供应商的实际情况,对特定的价格矩阵或根据产品与价格的情况进行调整。零售商在实际运作过程中,要在市场竞争中获得更高的占有率,需要根据实际竞争的情况,特别是产品在销售过程中的表现,作出有利于自身持续发展的决策。

考虑质量不确定的双渠道闭环供应链契约协调研究

文章设计了政府、制造者、零售者、第三方回收者和消费者的三阶段博弈决策模型,以政府奖惩政策对混合渠道各利益主体的定价策略和效用影响,用Stackelberg博弈模型对节点成员决策进行解析,构建收益费用共享契约机制实现双渠道闭环供应链的协调,最后用数值仿真验证分析。研究发现:政府最优规制水平下制造者对零售者和第三方回收者的收益费用共享契约设计可以有效提高再制造产品的竞争优势,平衡消费者的不确定需求。协调后的闭环供应链的系统利润达到集中决策标准,节点成员的效益均得到了提升。

ESTIMATION OF BASIS EXPANSION MODELS FOR DOUBLY SELECTIVE CHANNELS

By analyzing the relationship between Basis Expansion Model (BEM) and Doppler spectrum, this letter proposed a quasi-MMSE-based BEM estimation scheme for doubly selective channels. Based on the assumption that the basis coefficients are approximately independent and have the same variance for the same channel tap, the quasi-MMSE estimation shows approximately optimal performance and is robust to noise. Moreover, it can avoid a high Peak-to-Average Power Ratio (PAPR) by using continuous pilots. Performance of the proposed estimation scheme has been shown with computer simulations.