About the Authors
- Torbjørn Skardhamar
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Affiliation Senior researcher, Statistics Norway, Oslo, Norway
- Vegard Skirbekk
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* E-mail: skirbekk@iiasa.ac.at
Affiliation Project Leader, Age & Cohort Change Program (ACC), International Institute for Applied Systems Analysis (IIASA), Laxenburg, Austria
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Analyzed the data: TS VS. Contributed reagents/materials/analysis tools: TS VS. Wrote the paper: TS VS.