American happiness research

Matthew Killingsworth

Senior fellow at the Wharton School of the University of Pennsylvania and creator of the Track Your Happiness experience-sampling project, which collects in-the-moment wellbeing reports by smartphone. His 2021 analysis of 1.7 million such reports found that experienced wellbeing keeps rising with income above $75,000 a year, contradicting the earlier plateau finding, and he then settled the disagreement through an adversarial collaboration with Daniel Kahneman.