Funding for this research was provided by:
Bayer CropScience
Article History
Received: 29 October 2018
Accepted: 14 January 2019
First Online: 25 January 2019
Authors’ information
: Harald Strotmann and Jürgen Volkert are Professors of Economics at Pforzheim University in Germany. Melinda Schmidt has graduated at Pforzheim University and Autonomous University of Barcelona and works as research assistant in the project.
: The authors declare that they have no competing interests.
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