How to buy happiness

Michael Norton, behavioral economist at Harvard Business School, presents a deceptively simple research finding with profound implications: money can buy happiness, but only if you spend it on someone else. His global research program on prosocial spending overturns the assumption that money best serves wellbeing through personal acquisition and demonstrates instead that giving — in almost any form — produces a reliable boost in the giver’s subjective wellbeing.

Key Arguments

1. Prosocial spending outperforms personal spending. In a series of experiments, participants who received money and were instructed to spend it on others or donate to charity reported significantly higher wellbeing at the end of the day than those who spent the same amount on themselves — regardless of the amount.
2. The effect holds across cultures and income levels. Norton and colleagues replicated the prosocial spending effect in Uganda, where $5 is a meaningful sum, and in Canada. The pattern held in both contexts, suggesting it is not a wealthy-country luxury but a universal feature of human psychology.
3. Even tiny acts of prosocial spending work. Spending as little as $5 on someone else produces a measurable wellbeing boost. The absolute size of the gift matters far less than the fact of giving.
4. Teams that spend on each other outperform those that spend individually. In a study of pharmaceutical sales teams, teams given a bonus and instructed to spend it on teammates (a shared meal, a charitable donation together) significantly outperformed teams where individuals received personal bonuses — demonstrating a social performance effect, not just a wellbeing one.

Evidence Context

The prosocial spending finding is one of the most rigorously replicated results in the science of happiness. Dunn, Aknin, and Norton’s original 2008 Science paper has been followed by multiple cross-cultural replications. The mechanisms are consistent with self-determination theory (prosocial acts satisfy relatedness needs) and with the broaden-and-build theory of positive emotions. This is high-evidence, actionable science with clear behavioral implications.