PROJECT COMPLEXITY AS A MODERATOR OF PERFORMANCE BIAS TOWARDS OVERRUN

  • Li liu (School of Civil Engineering, University of Sydney ) ;
  • Andrew Nguyen (Evans & Peck, Worley Parsons) ;
  • James Arvanitakis (School of Civil Engineering, University of Sydney )
  • Published : 2011.02.16

Abstract

Studies have shown that infrastructure projects have continued to experience significant delays and cost overrun over an extended period of time and no evidence of learning ever have happened [1] [2]. Various causes contribute to the bias towards overrun [3]. This study contributes to literature by developing and subsequently validating a set of hypothesized relationships between project complexity and project performance. The results show that project complexity is associated with both the magnitude and variance of overrun. Further, the extent and magnitude of the positive bias towards overrun are moderated by project complexity.

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