jan.barkmann(at)h-da2.de I work on interdisciplinary issues in rural and agricultural landscapes, for >20 years using empirical social science methods. This includes work on rational societal decision-making, the importance of ecosystem services and biological diversity & economic valuation. Methodologically, I focus on stated preference techniques, particularly, on choice experiments. Since 2015 I have expanded into other fields of qualitative and quantitative social science research.