About the Authors
- Ohto Kanninen
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Contributed equally to this work with: Ohto Kanninen, Aleksi Karhula
Affiliation Labour Institute for Economic Research, Helsinki, Finland
- Aleksi Karhula
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Contributed equally to this work with: Ohto Kanninen, Aleksi Karhula
* E-mail: aleksi.karhula@utu.fi
Affiliation Department of Social Research, University of Turku, Turku, Finland
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Analyzed the data: OK AK. Wrote the paper: OK AK.