Development of cost-benefit analysis, as applied particularly to transport projects. The analysis of regulation and the relation between management requirements and the application of economic analysis.
Chief Economics Adviser United Kingdom Ministry Transport, 1965-1968, Consultant Chief Economics Adviser, United Kingdom Dept Environment, 1968-1969. Director, Small Business Unit, Director, Institute, Institution Public Sector Management, London Graduate Business School, 1973, 1977. Professor of Economics, London Graduate Business School, since 1965.
Managing Editor, Journal of Transport Economics and Policy Editorial Board, Applied Economics.