Bachelor, Amherst College, 1962; Master of Arts, Harvard University, 1965; Doctor of Philosophy, Harvard University, 1969.
Assistant professor Wesleyan University, Middletown, Connecticut, 1968—1974. Senior economic United States Railway Association, Washington, 1974—1975. Senior analyst Congressional Budget Office, 1975—1978.
Group director committee on budget United States Senate, 1978—1981. Private practice, 1981—2005. Manager public-private Maryland Transportation Authority, since 2005.
Board directors Canton Development Company, Baltimore. Chairman Canton Railroad Company, 1990-1994. Consultant Office Technology Assessment United States Congress, Washington, 1985-1995, Investment Program Association, Washington, since 1986, Money Management Institute, since 1997, Institute Certified Investment Management Consultant, 1999-2004.
Treasurer Bravo! The Washington Opera, 1983-1985, vice-chairman 1986-1988. Member Transportation Research Board (regulatory committee since 1991, finance and taxation committee since 1994), American Economics Association, Society Government Economists, Road Gang, Transportation Research Forum (president 1987-1988), Chevy Chase Club, University Club Washington, Henlopen Acres Beach Club, Rehoboth Beach Country Club, Harvard Club, Les Ambassadeurs Club.
Married Mary R. Tietz. 1 child, Mark Henry.