Bachelor of Arts(History) Brown University, 1968. BPhil, Doctor of Philosophy University Oxford, 1972, 1973.
Assistant Professor, Association Professor, Massachusetts Institute of Technology, Cambridge, Mass., USA, 1973-1976, 1976-1979. Research Association, National Bureau of Economie Research, New York, New York, United States of America, since 1979. Visiting Professor, Harvard University, 1982-1983.
Professor of Economics, Massachusetts Institute of Technology, Cambridge, Mass., USA, Cambridge, Massachusetts, since 1979. Editorial Boards, Bell Journal of Economics, 1974-1983, Rand J., 198^K Econometrica, since 1978, Mathematics Review, 1978-1980, Review of Economic Studies, 1979-1982, Journal of Public Economics, since 1982.
My major research activity has been the methodological development and application of econometrics. I have done research
into the simultaneous equations model, the discrete choice model, and in panel data to develop new econometrics models and methods to overcome problems which existed in each of these areas. I have also been interested in tests of the adequacy of the specification of econometric models.
I have developed specification tests which can be used in a variety of circumstances to test for correct specifications. Recently I have been doing research on the effects of errors in variables on econometric estimators. I have been engaged in the development of estimation techniques which overcome or alleviate this problem. Another area of methodological and applied interest has been the design and analysis of social and economic experiments.
I have done research on the negative income tax experiments and also experiments in electricity and telephone pricing and electricity conservation activities. One primary area of applied research has been in public finance. I have estimated models of labour supply which explicitly take account of the tax system which creates nonlinear budget sets.
My research has indicated the potential of large deadweight loss from the current United States income tax system. I have also considered the effects of the welfare system in the United States and social security on economic activity including labour-force participation, retirement behaviour, and savings behaviour. My applied research has also led to the development of empirical methods to calculate exact consumers’ surplus and deadweight loss to make welfare calculations.
The research indicates that approximate methods are inadequate for empirical measurement of deadweight loss.