About the Authors

Matthijs Kalmijn

Affiliation Department of Sociology, University of Amsterdam, Amsterdam, the Netherlands

Herman G. van de Werfhorst

H.G.vandeWerfhorst@uva.nl

Affiliation Department of Sociology, University of Amsterdam, Amsterdam, the Netherlands

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Analyzed the data: MK HvdW. Wrote the paper: MK HvdW.