Does Money Buy Happiness? What the Research Shows

In 2010, Daniel Kahneman and Angus Deaton published a study that landed like a grenade: emotional well-being rises with income, but only up to about $75,000 a year. After that, more money didn't make people feel better day to day.

The number became a cultural touchstone. People cited it at dinner parties, in TED talks, in arguments about wealth inequality. And then, in 2021, Matthew Killingsworth at Wharton found something different.

The $75,000 Myth (Sort Of)

Killingsworth's data, collected through an app that pinged over 33,000 employed adults at random moments throughout their day, showed that well-being continued to rise with income well past $75,000. There was no inflection point. No plateau.

So who was right? In 2023, Kahneman and Killingsworth collaborated with Barbara Mellers to reconcile their findings. The answer turned out to be nuanced. For the majority of people, happiness does keep rising with income. But for the unhappiest 20%, Kahneman's original finding held: more money above $100,000 made no difference. Their misery had roots that money couldn't reach.

Money is an effective painkiller for material problems. It's useless against existential ones.

What Money Actually Buys

The useful question isn't whether money buys happiness. It's what specifically money buys that contributes to well-being.

Elizabeth Dunn at the University of British Columbia has spent years studying this. Her findings are consistent: money spent on experiences produces more lasting happiness than money spent on things. A holiday with friends outperforms a new handbag. A cooking class beats a kitchen gadget.

Why? Experiences become part of your identity. They create stories. They connect you to other people. Objects, by contrast, adapt. The thrill of a new car fades within weeks. Psychologists call this hedonic adaptation, and it's relentless.

Dunn also found that spending money on others, buying a friend lunch, donating to a cause you care about, produces a stronger happiness boost than spending on yourself. This held true across income levels and across cultures, from Canada to Uganda.

The Time Problem

Here's where it gets interesting. Ashley Whillans at Harvard Business School has shown that as people earn more, they often feel more time-poor. Higher earners tend to value their time in monetary terms, which makes every non-productive minute feel like a loss.

This is a trap. Time affluence, the feeling that you have enough time, is a stronger predictor of well-being than material affluence. People who prioritise time over money report greater happiness, even controlling for income.

Whillans' advice is practical: use money to buy time. Pay for the cleaner. Get the grocery delivery. Take the direct flight. These purchases don't feel exciting, but they reduce daily friction and free up hours for the things that actually matter, relationships, rest, play.

Enough Is a Moving Target

One of the trickiest aspects of the money-happiness relationship is the reference point problem. We don't evaluate our income in absolute terms. We compare it to our peers, our past selves, and our expectations.

A raise feels wonderful until you learn your colleague got a bigger one. A bonus feels generous until you recalibrate your lifestyle around it. This is what economists call the relative income hypothesis, and it explains why countries that have doubled their GDP over 50 years show no corresponding increase in life satisfaction.

The hedonic treadmill is real. But it's not inevitable. Research by Kennon Sheldon suggests that people who pursue intrinsic goals (personal growth, relationships, community contribution) are less susceptible to adaptation than those chasing extrinsic ones (wealth, status, image).

Masamichi Souzou works with this understanding baked in. Financial success matters, but it's a means, not an end. The organisations and experiences we help design are built around what the research consistently points to: autonomy, connection, and purpose outlast any pay rise.