Mas-Colell says he is currently working with Green on a microeconomic theory textbook.

In addition to his experience as an administrator and scholar, Green has won respect for his skills as a teacher.

Marglin calls Green an "innovative" teacher who is "almost daring, by the standards of graduate teaching." For example, Green used the play Other People's Money as a model for one graduate economics course.

Green won the Galbraith prize for teaching ineconomics in 1980, and still handles a heavyteaching load. This semester, he is teaching agraduate course on economic theory and another on"Uncertainty and Information."

He also helps teach a year-long seminar onpublic and organizational decision-making withprofessors from the Business School and KennedySchool of Government.

He is not teaching any courses forundergraduates this semester, but was a residenttutor in Currier House between 1974 and 1976.

Green's rise at Harvard was relatively fast. Hearrived as an assistant professor in 1970immediately after earning an A.B. and Ph.D. fromthe University of Rochester.

He was promoted to associate professor threeyears later and was granted tenure in 1978, at age32.

In a Crimson interview after a class yesterday,Green refused to comment on any aspect of theprovost search.

But his colleagues say they would not besurprised if Green decided to sign on for aseven-to-10-year stint as a Universityadministrator.

"This might be a challenge he might be willingto take on...It would not surprise me," saysMarglin, who teaches a course with Green.

"His name resonates perfectly well with me as aprovost," says MasColell.

Green lives in Lincoln, Mass. with his wife,Pamela S. Green. They have no children.

He is an avid golfer and says he has a handicapof 8. His voice still carries traces of a New Yorkaccent