About the Authors

Ulrich Matter

Contributed equally to this work with: Ulrich Matter, Alois Stutzer

Affiliation University of Basel/Faculty of Business and Economics, Peter-Merian-Weg 6, 4002 Basel, Switzerland

Alois Stutzer

Contributed equally to this work with: Ulrich Matter, Alois Stutzer

alois.stutzer@unibas.ch

Affiliation University of Basel/Faculty of Business and Economics, Peter-Merian-Weg 6, 4002 Basel, Switzerland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: AS UM. Performed the experiments: AS UM. Analyzed the data: AS UM. Contributed reagents/materials/analysis tools: AS UM. Wrote the paper: AS UM.