About the Authors
- Bruce C. Petersen
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Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Project administration, Software, Validation, Writing – original draft, Writing – review & editing
* E-mail: petersen@wustl.edu
Affiliation Department of Economics, Washington University, St. Louis, Missouri, United States of America
Competing Interests
The author has declared that no competing interests exist.