· Faculty Associate, Environmental Policy Group, Massachusetts Institute of Technology2002–
· Visiting Professor, Delft University1999–
· Visiting Professor, Erasmus University1998–
· Professor of Technology and Policy, Massachusetts Institute of Technology1992–1992
· Faculty Associate, Institute for Work and Employment Research, Massachusetts Institute of Technology1988–
· Adjunct Faculty in Occupational Health Policy, Harvard School of Public Health1984–
· Director, Center for Policy Alternatives, Massachusetts Institute of Technology1983–1985
· Director, Technology & Law Program, Massachusetts Institute of Technology1983–
· Adjunct Associate Professor of Public Health, Boston University School of Public Health1978–1992
· Assistant Director, Center for Policy Alternatives, Massachusetts Institute of Technology1978–1983
· Associate Professor of Technology and Policy, Massachusetts Institute of Technology1978–
· J.D., Law, University of Chicago
· MBA (in progress), Business and Labor Economics, University of Chicago
· Ph.D., Physical Chemistry, University of Chicago
· B.A., Chemistry, Washington University