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Chiu, H N and Tsai, D M (2002) An efficient search procedure for the resource-constrained multi-project scheduling problem with discounted cash flows. Construction Management and Economics, 20(01), 55-66.

Drew, D S, Tang, S L Y and Lo, H P (2002) Developing a tendering strategy in two-envelope fee tendering based on technical score-fee variability. Construction Management and Economics, 20(01), 67-81.

Idrus, A B and Newman, J B (2002) Construciton related factors influencing the choice of concrete floor systems. Construction Management and Economics, 20(01), 13-9.

Loosemore, M and Chau, D W (2002) Racial discrimination towards Asian operatives in the Australian construction industry. Construction Management and Economics, 20(01), 91-102.

Radosaviljevic, M and Horner, R M W (2002) The evidence of complex variability in construction labour productivity. Construction Management and Economics, 20(01), 3-12.

Rahman, M M and Kumaraswamy, M M (2002) Joint risk management through transactionally efficient relational contracting. Construction Management and Economics, 20(01), 45-54.

Skitmore, M R (2002) Raftery curve construction for tender price forecasts. Construction Management and Economics, 20(01), 83-9.

  • Type: Journal Article
  • Keywords: cost; time; forecasting; probability; bidders; range estimates
  • ISBN/ISSN: 0144-6193
  • URL: https://doi.org/10.1080/01446190110093551
  • Abstract:

    John Raftery (1993), in his Inaugural Lecture at the University of Greenwich, suggested that project cost estimates be presented in the form of cumulative probability functions (termed here ’Raftery curves’) rather than the current practice of single-point estimates. This paper describes a method for the empirical construction of Raftery curves for tender price forecasts, which then is applied to ten previously published data sets gathered throughout the world. In comparing the resulting curves, the most consistent feature is shown to be the shift associated with to the number of bidders entering bids for contracts. This is examined both in terms of bias and consistency. Contrary to some previous studies, no evidence is found of any trends related to the value size of projects.

Sterner, E (2002) 'Green procurement' of buildings: a study of Swedish clients' considerations. Construction Management and Economics, 20(01), 21-30.

Walker, D H T and Shen, Y J (2002) Project understanding, planning, flexibility of management action and construction time performance: two Australian case studies. Construction Management and Economics, 20(01), 31-44.