About the Authors

Viola Angelini

v.angelini@rug.nl

Affiliation Department of Economics, Econometrics and Finance, University of Groningen, Groningen, the Netherlands

Bart Klijs

Affiliation Statistics Netherlands, The Hague, the Netherlands

Nynke Smidt

Affiliations Department of Epidemiology, Department of Geriatrics, University Medical Centre Groningen, Groningen, the Netherlands, Department of Geriatrics, University Medical Centre Groningen, Groningen, the Netherlands

Jochen O. Mierau

Affiliation Department of Economics, Econometrics and Finance, University of Groningen, Groningen, the Netherlands

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceptualization: VA BK NS JOM. Data curation: VA. Formal analysis: VA. Methodology: VA BK NS JOM. Writing – original draft: VA JOM. Writing – review & editing: VA BK NS JOM.