Correction to: Nature Human Behaviour https://doi.org/10.1038/s41562-018-0308-5, published online 26 February 2018.

In the version of this Perspective originally published, both authors were incorrectly indicated as being at both affiliations 1 and 2. However, John F. Helliwell is only affiliated with the 1University of British Columbia and Lara B. Aknin is only affiliated with 2Simon Fraser University. This has now been corrected.