1. Amsterdam Institute for Social Science Research (AISSR), University of Amsterdam, Nieuwe Achtergracht 166, 1018 VW Amsterdam, The Netherlands
2. Centre for International Forestry Research (CIFOR), Bogor 16115, Indonesia
3. School of International Development, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, UK
4. Faculty of Forestry, University of British Columbia, 2424 Main Hall, Vancouver, BC V6T 124, Canada