1. John Curtin Distinguished Professor, Curtin Univ. of Technology, GPO Box U1987, Perth, WA 6845, Australia (corresponding author).
2. Assistant Project Manager, Diploma, PO Box 91 Belmont, WA 6984, Australia.
3. Head of Department of Construction Management, Curtin Univ. of Technology, GPO Box U1987, Perth, WA 6845, Australia.
4. Professor, Director of the Centre for Business Innovation and Enterprise, Business School, Birmingham City Univ., Perry Barr, B42 2SU, United Kingdom.