需求不确定性下IT服务外包合同设计与分析

发布时间：2018-08-24 19:34

【摘要】：IT服务业务环境和技术环境的不确定性往往会引起服务需求的不确定性.针对IT服务外包中的需求不确定性问题,运用委托代理理论设计了不同需求环境下的合同,比较分析了固定价格合同、时间材料合同和收益共享合同的系统收益.研究表明:在需求确定的情形下,3种合同的系统收益水平是无差异的,都可达到整合供应链下的系统最优收益水平;在需求不确定的情形下,固定价格合同无法达到整合供应链下的系统最优收益水平,而其它合同形式可以达到,并且其它合同与固定价格合同的系统收益之差随着需求不确定性的增大而增大.最后,通过对需求为连续分布和离散分布时的算例分析,验证并拓展了相关结论.
[Abstract]:The uncertainty of IT service business environment and technology environment often leads to the uncertainty of service demand. Aiming at the problem of demand uncertainty in IT service outsourcing, this paper designs contracts under different demand environments by using principal-agent theory, and compares and analyzes the system benefits of fixed-price contracts, time-material contracts and revenue-sharing contracts. The results show that there is no difference in the system income level of the three kinds of contracts in the case of demand determination, which can reach the optimal system income level under the integrated supply chain, and in the case of uncertain demand, the system income level of the three kinds of contracts can reach the optimal level under the integrated supply chain. The fixed price contract can not reach the optimal return level of the system under integrated supply chain, while other contract forms can achieve it, and the difference between the system income of other contract and fixed price contract increases with the increase of uncertainty of demand. Finally, through the analysis of examples when the demand is continuous distribution and discrete distribution, the relevant conclusions are verified and extended.
【作者单位】：西安交通大学管理学院过程控制与效率工程教育部重点实验室;
【基金】：国家自然科学基金重大资助项目(70890081)
【分类号】：F270.7;F719;F224

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