Affiliation: | a Department of Agricultural Economics and Rural Development, Environmental & Resource Economics, Georg-August-Universität Göttingen, D-37073 Göttingen, Germany b Institute of Geography, Landscape Ecology, Georg-August-Universität Göttingen, D-37077 Göttingen, Germany c Institute of Geography, Social and Cultural Geography, Georg-August-Universität Göttingen, D-37077 Göttingen, Germany |