My undergraduate studies were specialised in accounting, which formed the background for early work on the application of microeconomic analysis to accounting information for managerial decisions. My interests then shifted further towards microeconomics, welfare economics, and industrial organisation. Work on externalities led to the development of interest in property rights and transactions costs, the application of these concepts to problems of industrial organisation, and a general interest in the economic analysis of law.
Assistant Lector, Lector, Senior Lector, London School of Economies and Political Science, London, United Kingdom, 1957-1979. Visiting Association Professor, University California Berkeley, 1963-1964. Visiting Professor, University Victoria, BC, 1967.
Reader Economics, London School of Economies and Political Science, London, United Kingdom, London, England, since 1979.