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Risk reduction in a project portfolio

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Abstract

The positive impacts of managing projects as a portfolio are quantified by comparing the value of the integrated risk of a project portfolio and the aggregation of single project risks implemented separately. Firstly, the integrated risk is defined by proposing risky events based on set theory. Secondly, as projects interact with each other in a project portfolio, the integrated risk is evaluated by using a Bayesian network structure learning algorithm to construct an interdependent network of risks. Finally, the integrated risk of a practical case is assessed using this method, and the results show that the proposed method is an effective tool for calculating the extent of risk reduction of implementing a project portfolio and identifying the most risky project, so as to assist companies in making comprehensive decisions in the phase of portfolio selection and portfolio controlling.

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Acknowledgments

The authors are grateful to the anonymous referees who provided thoughtful comments and suggestions which improved the quality of their paper. This research was supported by the National Natural Science Foundation of China (Grant No. 71272049 & No. 71402142), Ph.D. Programs Foundation of the Ministry of Education of China (Grant No. 20126102110052), and Humanities, Social Science and Management Research Fund of Northwestern Polytechnical University (Grant No. 2014RW0008).

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Correspondence to Liping Fang.

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Dujuan Guan received the PhD degree in management science from Northwestern Polytechnical University in 2015 and the Bachelor of Science degree in applied mathematics from Xidian University in 2002. Currently, she is a lecturer with the Department of Management, Hefei University. Her research interests include management systems engineering, project management, and risk management. The central field of her recent research is risk management of project portfolios from a complex systems perspective. She has published academic papers in many journals, such as Journal of Management, Software Science, Mathematics in Practice and Theory.

Peng Guo is a professor, Vice Dean, and Vice Chairman of Academic Committee, School of Management at Northwestern Polytechnical University, and Member of the Council of the Operations Research Society of China. He received his PhD degree in management science from Northwestern Polytechnical University in 2002. His research interests include management systems engineering, risk management, project management, and complex systems. He has published over 100 papers in SCI/EI and other important academic journals, such as Natural Hazards, Operations Research and Management Science, Studies in Science of Science, China Soft Science.

Keith W. Hipel is University Professor of systems design engineering at the University of Waterloo, Past-President of the Academy of Science within the Royal Society of Canada, Senior Fellow of the Centre for International Governance Innovation, and Fellow of the Balsillie School of International Affairs. He received his BASc in civil engineering (1970), MASc in systems design (1972), and the PhD in civil engineering (1975) from Waterloo. His interdisciplinary research interest is the development of conflict resolution, multiple objective decision making and time series analysis techniques from a system-of-systems engineering perspective. Dr. Hipel is recipient of the Japan Society for the Promotion of Science Eminent Scientist Award; Joseph G. Wohl Outstanding Career Award (IEEE Systems, Man and Cybernetics (SMC) Society); IEEE SMC Norbert Wiener Award; Docteur Honoris Causa (France); Doctor Honoris Causa (Hungary); Sir John William Dawson Medal (Royal Society of Canada); and Engineering Medal for Research and Development (Professional Engineers Ontario).

Liping Fang is a professor of mechanical and industrial engineering and Associate Dean, Undergraduate Programs and Student Affairs, Faculty of Engineering and Architectural Science, at Ryerson University, Toronto, Canada, and also an Adjunct Professor with the Department of Systems Design Engineering, University of Waterloo. He received the BEng degree in electrical engineering from Tianjin University, China, in 1982, and the MASc and PhD degrees in systems design engineering from the University of Waterloo, in 1985 and 1989, respectively. He has actively carried out research and consulting activities in the areas of industrial engineering, systems engineering, engineering management, and decision making, particularly in interactive decision making, multiple criteria decision making, and decision support systems. He has published widely, including two books, two edited books, and numerous journal and conference papers. Dr. Fang is Fellow of the Engineering Institute of Canada and recipient of several professional awards.

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Guan, D., Guo, P., Hipel, K.W. et al. Risk reduction in a project portfolio. J. Syst. Sci. Syst. Eng. 26, 3–22 (2017). https://doi.org/10.1007/s11518-016-5296-2

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