About the Authors

Inmaculada Martínez-Zarzoso

Contributed equally to this work with: Inmaculada Martínez-Zarzoso, Sebastian Vollmer

martinei@uji.es

Affiliations Department of Economics, University Jaume I, Castellón de la Plana, Spain, Department of Economics, University of Göttingen, Göttingen, Germany

Sebastian Vollmer

Contributed equally to this work with: Inmaculada Martínez-Zarzoso, Sebastian Vollmer

Affiliation Department of Economics, University of Göttingen, Göttingen, Germany

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: IM SV. Analyzed the data: IM SV. Wrote the paper: IM SV.