DIW - German Institute for Economic Research, Berlin
Member of the Scientific Advisory Board, since 2006

The Sapir Forum
Director, since 2005
Research Program on the Economics of Higher Education (joint with the Neaman Institute)

The Samuel Neaman Institute for Advanced Studies in Science and Technology,
Technion Israel Institute of Technology
 Head, Program on "Science, Technology and the Economy", since 1999

The Academic College of Tel Aviv-Yaffo
Member of the Appointments Committee, since 2004

Tel Aviv University
Member of the Budget Committee, since 2003

The World Bank
  Consultant on Innovation and R&D Policy for Development, 2005

Lucca Institute for Advanced Studies - IMT, Italy - Graduate Program on Economics, Markets and Institutions
  Member of the Scientific Board, 2005 -

CEPR (London, UK)
 Research Fellow, since 1999

National Bureau of Economic Research, Cambridge, Mass.
 Research Associate, since 1991
 Faculty Research Fellow, 1986, 1987.

The Conference on Research in Income and Wealth (CRIW),
Member, since 2005

The Rand Journal of Economics
 Associate Editor, 1995-2003

The Journal of Industrial Economics
Associate Editor, since 2001

The Journal of Technology Transfer
Board of Editors, since 2002

The Journal of Innovation and New Technology
 Associate Editor, since 1989

The Review of Economics and Statistics
 Associate Editor, 1999 - 2003

The International Journal of Industrial Organization
  Associate Editor, 1994 - 2000

Ministry of Industry and Trade, Office of the Chief Scientist,"Magnet" Program for the Support of Generic, Pre-Competitive Technologies
 Member of the Directorate, 1997- 2000

The National Council for Research and Development, and The National Council for the Development of Scientific and Technological Infrastructure in Israel
 Member (a Government appointment), 1996/97

Committee for Drafting Merger Guidelines for Israel
 Member, by appointment of the Minister of Trade and Industry, 1995

Foerder Institute for Economic Research, and Sackler Institute of Economic
Studies, Faculty of Social Sciences, Tel Aviv University
 Director, 1991 - 93

Eden Springs (the largest mineral water company in Israel)
 Board of Directors, 1998-2004

BATM - Advanced Communications (a High-Tech Company)
 Board of Directors, 1998-2001

Referee for:
The American Economic Review, Econometrica, The Rand Journal of Economics, The Review of Economics and Statistics, the National Science Foundation, the Binational Science Foundation, The Journal of International Economics, The Journal of Innovation and New Technology, Harvard University Press.