Bachelor of Science, Doctor of Science University London, 1947, 1971.
Lector, Reader, Visiting Professor, London School of Economies and Political Science, London, United Kingdom, 1948-1964, 1973-1975. Visiting Lector, Johns Hopkins University, 1953. Ford Foundation Visiting Professor, University Chicago, 1958.
Economics Adviser, United Kingdom Treasury, 1960-1962. Centre Economics Research, Athens, 1963. Chief Economics, United Kingdom Electricity Council, 1964-1967.
Member, Joint Deputy Chairman, United Kingdom National Board Prices and Incomes, 1967-1971. Economics Consultant, Scientific Control Systems, 1971-1975. Chief, Department Labour Info, and Statistics, International Labour Office, Geneva, Switzerland, since 1975.
Editorial Boards, Review of Economic Studies, International Economics Papers, Journal of Public Economics, Benefit Cost Analysis Annual.
Started as economic theorist in the days when it was possible to keep up with everything in economics, then gradually concentrated on the applied aspects of efficient resource allocation. Since 1964 I have in particular specialised in electricity economics, having estimated the marginal cost structure in some dozen electricity enterprises scattered round the world. In this work, and in prices and incomes work, I endeavoured to combine economic analysis with industry-specific knowledge.
More recently I have turned to labour statistics and some practical problems of consumer price indices.