Abstract：Control of projects is a core issue for organizations. Successful projects, such as information systems projects, enable organizations to develop a superior supply network and enhance the capability of operations management. A few studies have investigated the effects of control on project performance; however, complexity risk has not been integrated into the relationship between control and performance. Limited evidence has been provided concerning whether modes of control differ in their effectiveness in the presence of a single risk factor. Based on quantitative data obtained from 128 information systems projects, behavior, outcome, clan, and self-control are empirically determined to be positively associated with the system performance of projects. However, complexity risk generates a mixed moderating effect on the relationship between control and performance. In the presence of a high complexity risk, the effects of behavior and self-control on performance are low, whereas the effectiveness of outcome and clan control increases. This finding implies that complexity risk is a double-edged sword with regard to control. Each control mode exhibits different characteristics and effectiveness under high complexity risk. Therefore, appropriate control modes should be carefully selected, and highly effective control modes, such as outcome and clan control, should be prioritized in managing complex system projects.

　　论文针对目前国内外普遍存在的项目高风险、高失败率的现状，指出其根本原因在于缺乏有效的风险管理及合理的控制策略，尤其是在各类项目所涉及的技术、环境、任务越来越复杂的情况下。因此在日益增长的复杂性风险情况下如何进行有效控制是项目管理的核心。论文基于中国128个信息系统项目的实证调查研究，发现项目复杂性风险是把双刃剑，一些控制手段(如行为控制和自我控制)在高复杂性风险的环境下会失效，但是另外一些控制手段(如结果控制和价值观控制)却会非常有效。该发现突破了传统的风险负面效应的思维，认为在高风险的情况下仍然可以采取有效措施促成项目的成功。文章结论对于项目管理人员有效应对风险、降低项目的失败几率有着重要的实际意义。

　　原文载于UT Dallas 24种期刊之一《Journal of Operations Management》, 卷: 36，全文约1.5万字。《Journal of Operations Management》(运营管理，ISSN 0272-6963)是ELSEVIER出版集团所出版的最重要的学术期刊之一，主要发表组织运营管理、供应链管理、项目管理等领域最新的前沿科学研究成果，该杂志是UT Dallas 所列商学院24种顶尖期刊之一以及Financial Times(英国金融时报)所列45种顶尖期刊之一，被SCI和SSCI双收录，其5年影响因子在Operations Research & Management Science(运营研究和管理科学)类别中连续七年均排名第一(最新五年影响因子为7.692)，为我院A-期刊。