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Keywords:

  • project portfolio management;
  • uncertainty;
  • managerial roles;
  • management control systems;
  • product development

ABSTRACT

This article presents empirical results on different managers’ viewpoints regarding the sources and management of project portfolio uncertainty. As a key result, this study demonstrates the versatility of uncertainties experienced by managers, the limited degree of perceived control over them, the use of an almost complete management control package in managing uncertainties, and the necessity of managers’ cooperation in the skilled use of the management control package when managing uncertainties. In addition, a further research agenda is proposed.