1. Lecturer in Construction Management, School of Planning, Architecture and Civil Engineering, Queen’s Univ. Belfast, Stranmillis Rd., Belfast, Northern Ireland BT9 5AG, U.K. (corresponding author).
2. Civil Engineer, Killarney, County Kerry, Ireland.
3. Lecturer in Construction Management, School of Planning, Architecture and Civil Engineering, Queen’s Univ. Belfast, Stranmillis Rd., Belfast, Northern Ireland BT9 5AG, U.K.
4. Professor of Enterprise and Project Management, Bristol Enterprise Research and Innovation Centre (BERIC), Bristol Business School, Faculty of Business and Law, Frenchay Campus, Coldharbour Ln., Bristol BS16 1QY, U.K.