- Weiss, A.; King, J.E.; Matsuzawa, T.
- Evidence for a ‘Midlife Crisis’ in Great Apes Consistent with the U-Shape in Human Well-Being.
- IZA Discussion Paper No. 7009, 2012, Germany
- English (Australia, Canada, UK, USA)
Eligible for inclusion in findings archive
- No, no valid measure of happiness used.