1. Bioeconomy and Environment, Natural Resources Institute Finland (Luke), Helsinki, Finland
2. Research Area The Environment and Natural Resources, Kiel Institute for the World Economy, Kiel, Germany
3. Institute for Landscape Architecture and Environmental Planning, Technische Universität Berlin, Berlin, Germany
4. AKTiiVS Ltd., Riga, Latvia
5. Department of Economics, Kiel University, Kiel, Germany