About the Authors
- Mark Levels
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* E-mail: m.levels@maastrichtuniversity.nl
Affiliations Maastricht University, Maastricht, The Netherlands, College for Interdisciplinary Education Research, Berlin, Germany, Nuffield College, Oxford, United Kingdom
- Jaap Dronkers
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† Deceased.
Affiliation Maastricht University, Maastricht, The Netherlands
- Christopher Jencks
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Affiliation Kennedy School of Government, Harvard University, Cambridge (MA), United States of America
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceptualization: ML CJ. Data curation: ML. Formal analysis: ML. Funding acquisition: ML. Methodology: ML JD. Writing – original draft: ML JD CJ. Writing – review & editing: ML CJ.