Initial efforts in economics were concerned with natural resources, including the evolution of property rights, optimal control of environmental externalities and public policy. More recent works deal with the theory of externalities and public goods, with brief diversions into labour and industrial organisation. Current interests are in social decision mechanisms and market failures.
- Instructor Clemson University, 1970-1972. Instructor, Association Professor, University S. Carolina, 1975-1982. Association Professor of Economics, Auburn University, Auburn, Alabama, United States of America, 1982-.