服务产品价格的范围与振荡收敛性研究

服务提供商占有服务创造的价值的问题必然涉及到对服务产品的定价。通过使用价格和服务量共同来描述服务价值的创造与分配,用服务产品的价格的确定来实现价值的分配,用不同的价格决定权和博弈顺序来确定服务产品的价格范围,然后寻求一种服务产品价格的振荡系统,使得服务产品的价格最终收敛于总价值创造最高的价格。     

基于订单驱动市场下信息结构与金融资产价格均衡研究

依据我国证券市场订单驱动连续竞价交易机制,在引入信息结构及投资者看法差异的基础上建立序贯交易理论模型,研究金融资产价格的形成过程,并研究信息结构各方面对价格形成的影响。理论结果表明,信息存在、信息分布和信息组成对买卖价差产生不同影响,其影响结果不仅取决于信息结构自身,也受到投资者构成、看法差异以及信息量值的影响。随后基于中国证券市场进一步验证了理论模型的结论。     

提前期、构建成本和短缺量拖后率均可控的EOQ模型

传统库存模型通常将提前期和构建成本视为不可控制。事实上可以通过追加投资缩短提前期和降低构建成本。缺货期间,为减少订单丢失量和补偿顾客的损失,供应商会给予一定的价格折扣。现实库存系统中,容易得到需求的期望值和标准差,但较难得到其分布规律。基于此,考虑短缺量拖后率与价格折扣和缺货期间库存水平相关,提出了一种需求为任意分布且提前期和构建成本均可控的EOQ模型,证明了模型存在唯一最优解,给出了一种寻优算法。数值仿真分析表明,一般情况下,压缩提前期和降低构建成本能降低订购批量和安全库存,降低库存总成本;短缺量拖后系数和缺货概率对库存总成本影响较大,企业应尽量降低缺货概率,尤其在短缺量拖后系数较小时。     

三级供应链应对突发事件的价格折扣契约研究

针对一个供应商-制造商-零售商构成的三级供应链,在考虑随机性需求基础上,探讨突发事件对三级供应链的影响,同时改进了协调供应链的价格折扣契约,使之具有抗突发事件性,并讨论利润分配情况,最后通过仿真给出具体的算例.     

长期冲击、价格调整与股票组合收益的互相关关系

本文研究了以流通规模为基础的大、小股票组合之间的互相关关系。小股票组合对大股票组合显著为负的滞后引导关系表明基于价格调整速度差异的信息扩散机制在我国股市并不存在,这需要结合我国证券市场特定的投资者构成和投资行为才能给予可能的解释。组合收益率的长记忆性对互相关关系检验的有效性有着不可忽略的影响,在剔除长期因素的影响之后,组合之间的互相关关系有所减弱或消失。     

Ranked Items Auctions and Online Advertisement

We study auctions for a set of commonly‐ranked items where each buyer has unit demand. This setting has promising applications in areas such as keyword auctions in the search engine advertising industry, the sale of quality‐ranked raw materials, etc. An auction mechanism suitable for this setting is the simultaneous pooled auction (SPA), where each bidder simultaneously submits a single bid and is allocated an object based on the rank of his bid among all the bids. We study how to improve the seller's expected revenue by enforcing a reserve price in an SPA. We find that the use of an appropriate reserve price may significantly increase the seller's revenue, especially when the number of items for sale is relatively large compared to the number of participating bidders. One inherent problem in the SPA is that some bidders may incur ex post losses; that is, they pay more than what they value the received objects. We propose a tailored VCG mechanism that generates the same expected revenue as the SPA does, while bidders do not incur any ex post loss. We also discuss the potential applications of this research to keyword auctions.     

基于个性化需求的产品竞争供应链结构选择

基于"制销分离"与"定制一体"两种结构选择,构建个性化产品供应链处于非竞争与竞争环境下的博弈模型,在引入一个实际案例的基础上,运用算例仿真比较分析两种运营模式下的供应链运作策略和盈利差异。结果显示：与制销分离结构相比,个性化产品供应链选择定制一体结构,有利于匹配产品个性化制造、提升产品个性化水平和市场需求、增加供应链的期望收益;个性化产品供应链选择制销分离结构时,适度的批发价格激励能够提升产品个性化水平、更好满足消费者个性化需求、改善供应链的运营绩效,分销商适度让利加大批发价格激励力度可显著促进产品个性化制造互动、提升产品个性化水平;竞争将消减个性化产品供应链的运营绩效,但选择定制一体结构可显著提升竞争力。     

零售企业平台化转型及其双边定价策略研究

运用双边市场理论方法,研究传统零售企业的平台化转型及其双边定价模式选择,发现：1）在生产成本和消费者估价均匀分布的条件下,赚差价的传统垄断零售商收取进场费并不能增加利润,转型为会员费制双边零售平台反而降低利润.2）随着供应商单位分销成本的增加,传统零售商可先选择转型为佣金制双边零售平台作为过渡;随着单位分销成本的进一步提高,零售企业可以进一步提高佣金率,并对供应商进行适当补贴,但对消费者免收会员费,转型为二部收费制平台.3）会员费制双边零售平台的倾斜性双边定价策略与产品价格及其分销成本有关,当供应商的零售价格适中时,平台应向消费者与供应商收取会员费;而当供应商零售价格较高时,平台应向供应商收取会员费并补贴消费者.此外,本文结合我国 B2C 零售平台的收费模式进行应用分析.     

Strategic Sourcing in the Presence of Uncertain Supply and Retail Competition

This study develops an analytical model to evaluate competing retail firms' sourcing strategies in the presence of supply uncertainty. We consider a common supplier that sells its uncertain supply to two downstream retail firms engaging in price competition in a horizontally differentiated product market. The focal firm has a dual‐sourcing option, while the rival firm can only source from the common supplier. We assess the system‐wide effects of supply uncertainty on the focal firm's incentive to pursue the dual‐sourcing strategy. We find that the focal firm's dual‐sourcing strategy can create a win–win situation that leads to increased retail prices and expected profits for both firms. Furthermore, under certain conditions, we show that it is beneficial for the focal firm to strategically source from the common supplier, even if its alternative supplier offers a lower wholesale price. Overall, we identify two types of incentives for adopting the dual‐sourcing strategy: the incentive of mitigating supply risk through supplier diversification and the incentive of strategic sourcing for more effective retail competition.     

Non‐Manipulable House Allocation With Rent Control

In many real‐life house allocation problems, rents are bounded from above by price ceilings imposed by a government or a local administration. This is known as rent control. Because some price equilibria may be disqualified given such restrictions, this paper proposes an alternative equilibrium concept, called rationing price equilibrium, tailored to capture the specific features of housing markets with rent control. An allocation rule that always selects a rationing price equilibrium is defined, and it is demonstrated to be constrained efficient and (group) non‐manipulable for “almost all” preference profiles. In its bounding cases, the rule reduces to a number of well‐known mechanisms from the matching literature. In this sense, the housing market with rent control investigated in this paper integrates several of the predominant matching models into a more general framework.