Here is the study by the late great Kahneman:
Kahneman, D. & Deaton, A. (2010). High income improves evaluation of life but not emotional well-being. https://doi.org/10.1073/pnas.1011492107
And a 2021 follow-up that addresses criticisms of the original (TLDR: if you were already happy, you get more happy > 75K. If you were unhappy, you don't get more happy > 75K.)
Killingsworth, Kahneman, M.A. (2021). Experienced well-being rises with income, even above $75,000 per year. https://doi.org/10.1073/pnas.2016976118
And the HN thread when the study first dropped: https://news.ycombinator.com/item?id=1381927
Here is the study by the late great Kahneman:
Kahneman, D. & Deaton, A. (2010). High income improves evaluation of life but not emotional well-being. https://doi.org/10.1073/pnas.1011492107
And a 2021 follow-up that addresses criticisms of the original (TLDR: if you were already happy, you get more happy > 75K. If you were unhappy, you don't get more happy > 75K.)
Killingsworth, Kahneman, M.A. (2021). Experienced well-being rises with income, even above $75,000 per year. https://doi.org/10.1073/pnas.2016976118
And the HN thread when the study first dropped: https://news.ycombinator.com/item?id=1381927