基于联合契约的云计算服务供应链的协调策略研究

发布时间：2018-04-13 09:39

本文选题：供应链 + 联合契约　；参考：《北京邮电大学》2014年硕士论文

【摘要】：云计算通过Internet将一切计算资源以服务的形式提供给用户,而根据不同的资源类型和服务层次,可以将资源提供者划分为IaaS、 PaaS、SaaS服务提供商。针对这一背景,本文以云计算服务提供商为主体,构建云计算服务供应链。以减少需求不确定性所带来的风险和提高云计算服务供应链绩效为目标,设计出行之有效的、并为各方主体所乐于接受的协调机制。本文的研究主要集中在以下三个方面： (1)设计了一种联合契约,即引入奖励与惩罚机制的数量柔性契约,实现了对称信息下二级云计算服务供应链的协调。该服务供应链由AIP(Application Infrastructrue Provider)和ASP(Application Service Provider)构成,其中ASP向AIP租赁计算能力服务,并将增值的服务提供给市场。假设在完全信息市场中,市场需求服从均匀分布且价格敏感。以LF博弈(Leader-follower Game)理论考察AIP与ASP的决策行为。通过对比集中决策、分散决策、数量柔性契约和联合契约下,供应链的整体绩效,说明联合不仅能实现供应链协调,还能任意分配协调利润。 (2)提出了一种数量折扣和收入共享的联合契约,实现了不对称信息下二级云计算服务供应链网络的协调。该网络由1个AIP、1个潜在AIP和N个ASP构成,其中AIP与潜在AIP竞争为ASP提供服务；不同的ASP面向市场提供不同类型的SaaS服务,该服务系统可近似抽象为M/M/1排队系统。ASP面对相互独立、价格敏感的等弹性需求。ASP拥有私有信息,即市场需求和自身最小服务期望租赁量。研究结果表明,分散决策及数量折扣契约无法实现供应链协调,而联合契约不仅能实现供应链的绩效协调,还能提供参与方的利润。 (3)运用数量折扣与联合契约的联合应用,实现了不对称信息下的三级云计算服务供应链网络的协调。该网络由1个AIP、1个APP(Application Platform Provider)和N个ASP构成。AIP为APP提供计算能力服务,APP为ASP提供平台服务,ASP向市场提供增值的应用服务。ASP面对相互独立、价格敏感的等弹性需求,且拥有私有信息。研究表明,参与各方的自利行为将导致双边际化效应,而联合契约能有效的引导和激励各方的决策行为,实现供应链的协调。
[Abstract]:Cloud computing provides all computing resources to users in the form of services through Internet. According to different resource types and service levels, resource providers can be divided into IaaSs, PaaSnSaaS service providers.In view of this background, this paper takes cloud computing service provider as the main body, constructs cloud computing service supply chain.Aiming at reducing the risk of demand uncertainty and improving the performance of cloud computing service supply chain, an effective and acceptable coordination mechanism is designed.This paper focuses on the following three aspects:1) A joint contract is designed, that is, the quantity flexible contract with reward and punishment mechanism is introduced to realize the coordination of the two-level cloud computing service supply chain under symmetric information.The service supply chain consists of AIP(Application Infrastructrue provider and ASP(Application Service provider, where ASP rents computing power to AIP and provides value-added services to the market.Assume that in a complete information market, market demand is evenly distributed and price-sensitive.The decision behavior of AIP and ASP is investigated by using the Leader-follower game theory of LF game.By comparing the overall performance of supply chain with centralized decision, decentralized decision, quantity flexible contract and joint contract, it is shown that alliance can not only realize coordination of supply chain, but also distribute coordination profit arbitrarily.A joint contract of quantity discount and revenue sharing is proposed to coordinate the two-level cloud computing service supply chain network under asymmetric information.The network consists of an AIP, a potential AIP and N ASP, in which AIP competes with potential AIP to provide services for ASP, and different ASP provide different types of SaaS services to the market. The service system can be abstracted as M/M/1 queuing system.The price-sensitive iso-elastic demand .ASP has private information, that is, the market demand and its own minimum service expected lease amount.The results show that decentralized decision and quantity discount contract can not achieve supply chain coordination, and the joint contract can not only achieve the coordination of supply chain performance, but also provide the profits of the participants.3) the coordination of three-level cloud computing service supply chain network under asymmetric information is realized by using the combined application of quantity discount and joint contract.The network is composed of 1 AIP, 1 APP(Application Platform provider, and N ASP. AIP provides computing power service for APP. App provides platform service for ASP. ASP provides value-added application service. ASP is faced with independent, price-sensitive and other elastic demands, and has private information.The research shows that the self-interest behavior of the parties involved will lead to the double marginalization effect, and the joint contract can effectively guide and motivate the decision-making behavior of the parties and achieve the coordination of the supply chain.
【学位授予单位】：北京邮电大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP393.09

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