Institution: | 1. Stefan Guettler, Department of Agricultural Economics, Christian‐Albrechts‐University at Kiel, Germany. Email: stefan.guettler@ae.uni‐kiel.de;2. Danica Lambrecht, Department of Agricultural Economics, Christian‐Albrechts‐University at Kiel, Germany. Email: dlambre@ae.uni‐kiel.de;3. Rolf A.E. Mueller, Prof. Dr., Department of Agricultural Economics, Christian‐Albrechts‐University at Kiel, Germany. Email: raem@ae.uni‐kiel.de |