电子商务环境下双渠道供应链协调的补偿策略研究

构建了电子商务环境下由一个制造商与一个零售商组成的双渠道供应链模型,分析、比较了集中式决策与分散式决策下双渠道供应链的最优价格,从电子渠道与传统渠道合作的角度出发,研究了双渠道供应链协调的补偿策略,论证了这种补偿策略能够实现双渠道供应链协调,且在一定范围内可以保证双渠道供应链成员的双赢.最后通过算例分析,进一步检验了所设计的补偿策略对双渠道供应链协调的有效性.     

In‐Store Experiments to Determine the Impact of Price on Sales

This paper describes an experimentation methodology to measure how demand varies with price and the results of its application at a toy retailer. The same product is assigned different price‐points in different store panels and the resulting sales are used to estimate a demand curve. We use a variant of the k‐median problem to form store panels that control for differences between stores and produce results that are representative of the entire chain. We use the estimated demand curve to find a price that maximizes profit. Our experiment yielded the unexpected result that demand increases with price in some cases. We present likely reasons for this finding from our discussions with retail managers. Our methodology can be used to analyze the effect of several marketing and promotional levers employed in a retail store besides pricing.     

免费搭车行为对供应链横向竞争的影响

考虑两家处于供应链下游的零售商,其中一家为实体店,一家为网上店,其中网上店利用了顾客的免费搭车行为获得部分市场需求。文章研究了免费搭车行为对两零售商价格竞争及利润的影响。研究表明随着实体店服务水平的上升和网上店初始需求的增大,网上店的均衡利润将增加,两家店的价格竞争将更加激烈;当边际服务成本较低时,实体店的均衡利润要高于网上店的均衡利润,允许顾客的免费搭车行为存在,并缓解了两家店之间的价格竞争;当边际服务成本很高时,实体店入不敷出,不再允许顾客的免费搭车行为。     

Menu Costs,Multiproduct Firms,and Aggregate Fluctuations

Golosov and Lucas recently argued that a menu‐cost model, when made consistent with salient features of the microdata, predicts approximate monetary neutrality. I argue here that their model misses, in fact, two important features of the data. First, the distribution of the size of price changes in the data is very dispersed. Second, in the data many price changes are temporary. I study an extension of the simple menu‐cost model to a multiproduct setting in which firms face economies of scope in adjusting posted and regular prices. The model, because of its ability to replicate this additional set of microeconomic facts, predicts real effects of monetary policy shocks that are much greater than those in Golosov and Lucas and nearly as large as those in the Calvo model. Although episodes of sales account for roughly 40% of all goods sold in retail stores, the model predicts that these episodes do not contribute much to the flexibility of the aggregate price level.     

模糊需求下n级供应链的收益共享契约机制研究

在模糊需求环境下,研究n级供应链系统的收益共享契约机制。将市场需求视为模糊变量,通过模糊截集理论建立了模糊需求下n级供应链的分散决策模型、集中决策模型以及收益共享契约机制模型,并给出了各模型中的最优策略。研究结果表明:零售商的产品最优订购量处于模糊需求中心点的左侧还是右侧,取决于产品零售价格和单位产品成本,并且随着零售价格的增加而提高;单位产品批发价格并不随着零售价格的变化而改变;供应链各成员的最优模糊期望利润随着零售价格的增加而增加。最后通过数值算例对模型进行了分析。     

Replenishment Strategies for Micro‐Retailers in Developing Countries

When formal distribution channels are absent in developing countries, micro‐retailers travel a long distance to replenish their stocks directly from suppliers. This “informal” replenishment strategy is inefficient due to high imputed travel costs involved in the replenishment process. To improve efficiency, one “hybrid” replenishment strategy has emerged under which one of the micro‐retailers in a neighborhood, while continuing its own retail business, also operates as a wholesaler to serve other micro‐retailers in the neighborhood. A major obstacle for the transition from the informal strategy to the hybrid strategy is that the micro‐retailers are reluctant to source from a wholesaler who also competes with them in the retail market. Thus, it is not clear when the micro‐retailers adopt the hybrid strategy instead of the informal strategy. Meanwhile, the micro‐retailers may prefer the “formal” strategy: a traditional replenishment strategy under which one of the micro‐retailers relinquishes its retail business and operates purely as a wholesaler. We examine a situation when competing micro‐retailers contemplate with the three potential aforementioned replenishment strategies. Our equilibrium analysis of the two‐store model reveals that the dominant strategy is: (a) the hybrid strategy when the travel cost is high; (b) the formal strategy when the travel cost is medium; and (c) the informal strategy when the travel cost is low. This key insight is shown continue to hold when we extend the two‐store model to incorporate other issues including: quantity discounts from the supplier, variable operating costs, price competition, local monopolies, and different decision sequences. One additional finding is that the transition from the informal strategy to the hybrid strategy could benefit consumers if the micro‐retailers receive quantity discounts from the supplier. Furthermore, when there are more than two stores, we show that the formal strategy is never dominant. Moreover, when the number of stores increases, the hybrid strategy becomes more preferable to the informal strategy.     

基于顾客需求偏好的面向无人零售终端的供应链资源整合优化研究

面向新零售的无人零售终端所关注的焦点是如何为顾客提供满意的购物体验。目前,无人零售终端在提供服务时较多关注不同场景下顾客对商品类型的需求,而往往忽略价格、品质和终端操作便捷性等其他差异化的需求。而无人零售的无人值守、需要灵活补货和配货等特点,决定了其在提供差异化服务时,离不开供应链网络的有效支撑,这就需要对供应链网络中的各类资源进行合理整合。本文在分析不同场景下顾客需求偏好的基础上,重点探讨了面向无人零售终端资源整合中的供应链成员筛选机理,有针对性地提出了关键因素的挖掘和分类方法。在此基础上,构建了对应的整合优化模型和求解算法,并通过算例验证了方法和算法的可行性、有效性与可操作性。     

考虑广告影响下的新产品垄断动态定价研究

针对垄断零售商的新产品定价问题,提出了一个新产品动态定价策略。在顾客对以往的价格和广告具有"学习"能力的条件下,提出了具有"学习"功能的需求函数。在给定各周期广告水平下,给出了零售商最优的动态定价策略,分析了零售商定价规律,发现其定价规律具有"振荡"性,并趋近于一定值。在零售商要同时决策零售价格和广告水平的条件下,给出了各周期最优的零售价格和广告水平。在一定条件下,当周期数趋近无穷大时零售价格趋近于顾客的保留价格或者单位成本。     

实报还是谎报——双边信息激励与供应链效率

探讨了双边不对称信息下供应链信息真实分享和谎报对效率的影响。首先,给出完全信息下的最优商品交易量和供应链利润作为比较基准。其次,构建双方信息真实分享的激励模型。研究发现激励双方信息真实共享所需的信息租金降低交易量和供应链利润。再次,构建允许信息谎报的交易量谈判模型。研究发现,供销双方都偏好高报自己的信息类型。个体谎报信息的幅度随着谈判力增加而减小。拥有绝对谈判力的一方不会谎报信息。供应链效率与谎报信息的幅度、成本上界以及销售价格相关。最后,通过数值算例对实报信息和谎报信息下交易量、供应链个体利润及效率进行对比分析。研究结果为管理实践提供一定的洞见:供应链企业是否激励双边信息分享可根据双方成本大小进行选择。     

基于货架空间成本共担的不同权力供应链均衡分析

针对产品需求受货架空间与零售价格共同影响的两级供应链,通过比较供应商主导、零售商主导和权力均等三种不同权力结构供应链均衡结果,分析了供应商与零售商共同承担货架空间成本对供应链定价、货架空间分配和利润的影响。研究结果表明:供应商与零售商共同承担货架空间成本会减少供应商主导供应链的整体利润,但会使零售商主导和权力均等供应链通过分配更多的货架空间增加产品销量,在一定范围内使得供应链整体利润得到提高。由于三种不同权力结构供应链均未达到整体最优,提出了基于货架成本共担的收入共享合同,并给出了供应商和零售商均能接受的分配方案。     

不确定需求下的冷链分销商最优决策

针对新鲜产品供应链 (冷链) 中分销商, 引入保鲜努力刻画分销商投入的保鲜工作, 考虑新鲜产品到达市场的数量与质量, 分析冷链分销商的最优决策问题.与前人研究相比, 本文使用加法形式需求函数刻画市场需求, 并使用相关企业数据验证加法形式需求函数合理性, 完善了冷链分销商决策问题的相关研究.研究发现, 当保鲜努力外生时, 分销商的最优订货数量和最优零售价格只与保鲜努力有关;当零售价格外生时, 分销商的最优保鲜努力与产品实际单位成本关于保鲜努力函数的一阶最优条件有关;当订货数量外生时, 分销商制定的零售价格随保鲜努力增加而增大, 所获得的利润也随保鲜努力递增, 但边际利润随保鲜努力递减.最后, 将所得结论应用于中国500强民营企业卓尔控股有限公司旗下的小雪冷链 (武汉) 物流有限公司, 为该公司提供相应的保鲜努力投入策略.     

基于制造商建议零售价的供应链定价策略

为了阐述制造商建议零售价格对供应链定价策略的影响,以其作为消费者的参照价格,引入到供应链系统中。采用博弈论的方法进行研究,结果表明：当制造商建议零售价格较低时,零售商将采用最低参照价格策略,当制造商建议零售价格较高时,零售商将采用最高参照价格策略,当制造商建议零售价格介于两者之间时,零售商将采用价格保持策略。在此基础上,研究了相关参数对上述三种策略的影响,以及三种策略之间的差异。不仅指出最低参照价格策略或者最高参照价格策略都有可能使制造商的收益最大化,还给出了选择的条件。最后,用数值分析比较了不同策略下的供应链系统收益,指出在最高参照价格策略下的系统收益是最优的。相关结论为制造商建议零售价格制定提供了理论依据。     

非对称成本扰动信息非线性需求函数下的供应链契约设计

为了分析非对称的成本扰动信息对于供应链契约设计的影响,研究了当制造商的成本发生扰动并且扰动信息是非对称的情形下的零售商的最优契约设计问题。假定市场需求是关于价格的非线性函数,使用委托-代理理论,设计了非对称的成本扰动信息下的供应链最优契约菜单,并且分析了非对称的扰动信息对于供应链绩效的影响。研究结果表明,当需求为常数柔性函数或者指数函数形式时,可以设计有效的契约菜单来改善供应链的绩效;在非对称的成本扰动信息下,当生产成本扰动满足一定条件时,初始的生产计划仍然是最优的;非对称的成本扰动信息并不必然会给供应链带来利润损失。最后通过数值算例对模型的结果进行了验证。     

考虑不同经营模式的零售商纵向整合策略选择:前向,后向还是不整合？

随着互联网的发展,"新零售"表现形式之一的纵向整合成为零售商转型升级的重要策略。考虑了产品之间竞争性,分别研究了分销模式、平台模式和混合模式下,零售商采取不进行纵向整合、前向整合和后向整合的利润,通过对比给出零售商最优的纵向整合策略选择条件。最后,分析了不同经营模式对零售商纵向整合策略选择的影响。研究发现：第一,随着潜在需求的增加,在三种经营模式下零售商的最优策略都从不进行纵向整合变为后向整合、前向整合;第二,随着产品之间竞争程度增加,在分销模式和平台模式下,零售商的最优策略从后向整合变为不进行纵向整合、前向整合,在混合模式下,零售商的最优策略从后向整合或不进行纵向整合变为前向整合;第三,随着佣金费率增加,在平台模式下,零售商的最优策略从前向整合变为后向整合、不进行纵向整合,在混合模式下,零售商的最优策略从前向整合或后向整合制造商2变为不进行纵向整合、后向整合制造商1。     

厂商动态竞争性差别定价和竞争优势实现——基于消费者寻求多样化购买行为的分析

随着信息技术的发展,厂商可以根据消费者的历史购买信息实施差别定价.该文主要研究相互竞争的厂商基于消费者的购买历史实行差别定价的本质特征和形成机制,以及实施这种定价策略能否在竞争中获取竞争优势.分析结果显示,在竞争性差别定价均衡中,消费者寻求多样化购买是厂商实施差别定价的内在原因,厂商在第2期通过给予价格优惠吸引消费者重复购买,对忠诚的消费者给予奖励,并在第1期弱化竞争,导致两期竞争存在"默契合谋",消费者寻求多样化购买成为竞争厂商利润的源泉;如果厂商能够比竞争对手率先实施差别定价的营销策略,那么就能在竞争中获取优势.另外,清晰地刻画了竞争性差别定价均衡存在且唯一的充分条件.该文的研究结果可以很好地解释现实经济中许多厂商的定价竞争策略行为,对于厂商的产品营销战略具有重要的指导意义.     

Supplier Encroachment and Investment Spillovers

It is conventional wisdom that a manufacturer's encroachment into retail space will likely hurt an existing retailer. In contrast to this conventional belief, current research indicates that a retailer may welcome a manufacturer's encroachment despite the new competition in the final market. The encroachment may help the manufacturer have some “skin in the game” at the retail level, which will cause the manufacturer to make a selfish cost‐reducing investment that spills over to the retailer as a lower wholesale price. Such a spillover effect enhances the retailer's profit as long as the encroachment does not result in extreme retail competition by a certain degree of product differentiation, and ultimately generates Pareto gains in the supply chain. The spillover effect is so robust that the retailer's benefit from the encroachment remains even after considering potential mitigating factors such as selling costs, a nonlinear form of cost reduction, decentralized encroachment, additional retail competition, price competition, and a negotiation between the manufacturer and the retailer.     

双渠道模式下定价与提前期联合优化研究

在双渠道模式下，本文对零售商的价格和提前期决策进行研究。根据零售商线上服务范围的不同，双渠道服务模式可以划分为近端服务模式、中端服务模式和远端服务模式。本文分析了零售商在三种服务模式下最优的价格和提前期决策，并对三种服务模式进行对比。结果表明，如果零售商的配送速度较低，零售商应该选择近端服务模式。如果零售商的配送速度较高，则在中端和远端服务模式中进行选择，且随着成本的增加，提前期均会缩短，这是因为零售商的服务范围会随着配送成本增加而缩小，此外，配送速度的增大也会导致提前期缩短；而价格在两种模式中变化趋势不同，中端服务模式下价格呈现非递增趋势，而远端服务模式下价格呈现非递减趋势。因为在中端服务模式下，零售商更加愿意提供降价来吸引更多的线下需求，而远端服务模式则是提升价格来保证产品的边际收益。研究结论可为零售企业提供有效的科学的参考和理论指导。     

The loss-averse newsvendor problem

Newsvendor models are widely used in the literature, and usually based upon the assumption of risk neutrality. This paper uses loss aversion to model manager's decision-making behavior in the single-period newsvendor problem. We find that if shortage cost is not negligible, then a loss-averse newsvendor may order more than a risk-neutral newsvendor. We also find that the loss-averse newsvendor's optimal order quantity may increase in wholesale price and decrease in retail price, which can never occur in the risk-neutral newsvendor model.     

随机产出与需求下农产品供应链协调的收益共享合同研究

生鲜农产品生产受季节性和天气等影响,投入一定农资后产出呈随机分布。本文考虑产出和需求扰动服从均匀分布情形下,单个生产商和零售商的供应链协调问题。在收益共享合同模式下,生产商决定农资投入数(e)并将单一产品以低于生产成本的价格(ω)全部出售给零售商,零售商制定销售价格(p)进行销售并支付约定比例(1-Ф)的收益补偿生产商。在分析供应链协调的条件后,说明了合同参数ω与Ф的关系和Ф设定范围。研究结果表明,收益共享合同能有效地协调供应链,且协调的p和e与需求价格弹性有关;并且Ф取值范围随影响产出的随机变量的期望值变大而增大。最后以数值算例说明了分析结果的正确性。     

Joint Ordering and Pricing Strategies for Managing Substitutable Products

Starr and Rubinson (1978) develop a model to establish the relationship between product demand and relative prices. The notion of relative prices motivates us to consider a situation in which a retailer would either charge the same retail price for all products if he adopts a ‘fixed’ pricing strategy or charge different prices for different products if he adopts a ‘variable’ pricing strategy. In this paper, we develop a base model with deterministic demand that is intended to examine how a retailer should jointly determine the order quantity and the retail price of two substitutable products under the fixed and variable pricing strategies. Our analysis indicates that the optimal retail price under the variable pricing strategy is equal to the optimal retail price under the fixed pricing strategy plus or minus an adjustment term. This adjustment term depends on product substitutability and price sensitivity. We also present two different extensions of our base model. In the first extension, our analysis indicates that the underlying structure of the optimal retail price and order quantity is preserved when there is a limit on the total order quantity. The second extension deals with the issue of retail competition. Relative to the base case, we show that the underlying structure of the optimal retail price and order quantity is preserved in a duopolistic environment. Moreover, our analysis suggests that both retailers would adopt the variable pricing strategy at the equilibrium.