About the Authors

Till Koebe

Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Software, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing

till.koebe@fu-berlin.de

Affiliation Department of Economics, Freie Universität, Berlin, Germany

Competing Interests

The author have declared that no competing interests exist.