- Fellow, South Asian Network for Development and Environmental Economics (SANDEE), 2007-
- Visiting Scholar, International Food Policy Research Institute, USA, 2003
- Scholar-in-Residence, The Rockefeller Foundation, Italy, 1996
- Senior Fulbright Scholar, Council for International Exchange of Scholars, USA, 1994-95
- Professional Associate, East-West Center Population Institute, Honolulu, Hawaii, 1979 and 1983