1. Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Ås, Norway
2. Department of Forest Economics, Swedish University of Agricultural Sciences, Uppsala, Sweden
3. Department of Forest Economics, Swedish University of Agricultural Sciences, Umeå, Sweden
4. Natural Resources Institute Finland (Luke), Helsinki, Finland
5. Department of Forest Sciences, University of Helsinki, Helsinki, Finland
6. Department of Food and Resource Economics, University of Copenhagen, Frederiksberg, Denmark
7. Wood Materials Science, University of Eastern Finland, Joensuu, Finland
8. School of Forest Sciences, University of Eastern Finland, Joensuu, Finland