About the Authors

James C. Cox

Affiliation Andrew Young School of Policy Studies, Georgia State University, Atlanta, Georgia, United States of America

Vjollca Sadiraj

Affiliation Andrew Young School of Policy Studies, Georgia State University, Atlanta, Georgia, United States of America

Ulrich Schmidt

ulrich.schmidt@ifw-kiel.de

Affiliations Kiel Institute for the World Economy, Kiel, Germany, Department of Economics, University of Kiel, Kiel, Germany

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JCC VS US. Performed the experiments: JCC VS US. Analyzed the data: JCC VS US. Contributed reagents/materials/analysis tools: JCC VS US. Wrote the paper: JCC VS US.