1. Department of Food and Resource Economics, University of Copenhagen, Copenhagen, Denmark
2. Department of Economics, Copenhagen Business School, Frederiksberg, Denmark
3. Division of Food Production and Society, Department of Society and Economy, Norwegian Institute for Bioeconomy Research (NIBIO), Norway
4. Stellenbosch University, Matieland, Stellenbosch, South Africa
5. Skovdyrkerforeningen Syd, Børkop, Denmark
6. Division of Forest and Forest Resources, National Forest Inventory, Norwegian Institute for Bioeconomy Research (NIBIO), Norway