DEREK W. BUNN is currently Professor and Chairman of the Decision Sciences subject area and Director of the Energy MarketsGroup at the London Business School, having held previous appointments at Oxford and Stanford universities. As a prominent international advisor on energy economics, he has consulted formany global energy companies and advised a number of government agencies. Author of over 150 research papers and 9 books in theareas of forecasting, decision analysis and energy economics, hehas also been chief editor of the Journal of Forecasting since 1984. His research and practical involvement with the electricity sector extends back over 25 years experience.