Source: Eduardo Munoz/Reuters
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We now know who is rich in America. And it’s not who you might have guessed.

A groundbreaking 2019 study by four economists, “Capitalists in the Twenty-First Century,” analysed de-identified data of the complete universe of American taxpayers to determine who dominated the top 0.1 per cent of earners.

The study didn’t tell us about the small number of well-known tech and shopping billionaires but instead about the more than 140,000 Americans who earn more than $1.58 million per year. The researchers found that the typical rich American is, in their words, the owner of a “regional business,” such as an “auto dealer” or a “beverage distributor.”

This shocked me. Over the past four years, in the course of doing research for a book about how insights buried in big data sets can help people make decisions, I read thousands of academic studies. It is rare that I read a sentence that changes how I view the world. This was one of them. I hadn’t thought of owning an auto dealership as a path to getting rich; I didn’t even know what a beverage distribution company was.

What are the lessons from the data on rich earners?

First, rich people own. Among members of the top 0.1 per cent, the researchers found, about three times as many make the majority of their income from owning a business as from being paid a wage. Salaries don’t make people rich nearly as often as equity does.

Second, rich people tend to own unsexy businesses. A different study, by the statisticians Tian Luo and Philip B. Stark, examined which businesses were most likely to fold fastest. The kind most likely to go out of business most quickly is a record store. The average record store lasts just 2.5 years. (For comparison, the average dentist’s office lasts more than 19.5 years.) Other businesses that fold quickly include toy stores (3.25 years), clothing stores (3.75 years) and cosmetics stores (four years).

There are, however, plenty of unsexy businesses from which a few people are getting rich. These include auto repair shops, gas stations and business equipment contractors.

The third important factor in gaining wealth is some way to avoid ruthless price competition, to build a local monopoly. The prevalence of owners of auto dealerships among the top 0.1 per cent gives a clue to what it takes to get rich.

Comparing data from the appendix of the economists’ study with data from the SUSB Annual Data Tables put out by the Census Bureau, I estimate that more than 20 per cent of auto dealerships in America have an owner making more than $1.58 million per year.

Auto dealerships have legal protections against price competition; state franchising laws often give auto dealers exclusive rights to sell cars in a territory. Same for many beverage distributors, which act as middlemen between alcohol companies and stores and supermarkets. Beverage distributors have long been protected by a system set up after prohibition that prevents beverage companies from distributing their products themselves.

Of course, if upon learning this you try to buy someone’s auto dealership, you may not have much luck. Owners of auto dealerships know how good they have it.

Is there any business that tends to make people rich that you might have a better shot at?

My data-driven advice for getting rich for someone with good analytical skills and deep experience in a field is to start a market research business. Use your specialised knowledge in the field to write up reports; sell them widely and charge a fortune to your contacts in the field. I have estimated that more than 10 per cent of owners of market research businesses are in the top 0.1 per cent.

If pop culture is right, getting rich is a path to happiness. Is that true? Does money actually make people happy?

Just as anonymous tax data, which has only been made widely available to researchers in the past few years, has led to credible research on what actually makes people rich, new sources of data in the past decade have given us many insights into what actually makes people happy.

And money is not a reliable path to happiness. Matthew Killingsworth of the University of Pennsylvania has studied data from more than 30,000 adults, far larger than previous studies of money and happiness. He debunked a popular myth that there is no effect of money on happiness beyond $75,000 per year, but he did confirm a law of diminishing returns to money. In the end, Dr. Killingsworth found, the effects of money level off: You need to keep doubling your income to get the same happiness boost.

A study of thousands of millionaires led by researchers at Harvard Business School did find a gain in happiness that kicks in when people’s net worth rises above $8 million. But the effect was small: A net worth of $8 million offers a boost of happiness that is roughly half as large as the happiness boost from being married.

What, in addition to being married, tends to make people happy?

The most important happiness study, in my opinion, is the Mappiness project, founded by the British economists Susana Mourato and George MacKerron. The researchers pinged tens of thousands of people on their smartphones and asked them simple questions: Who are they with? What are they doing? How happy are they?

From this, they built a sample of more than three million data points, orders of magnitude more than previous studies on happiness. So what do three million happiness data points tell us?

The activities that make people happiest include sex, exercise and gardening. People get a big happiness boost from being with a romantic partner or friends, but not from other people, like colleagues, children or acquaintances. Weather plays only a small role in happiness, except that people get a hearty mood boost on extraordinary days, such as those above 75 degrees and sunny. People are consistently happier when they are out in nature, particularly near a body of water, particularly when the scenery is beautiful.

The findings on the data of happiness are, to be honest, obvious. When I told my friends about these studies, the most common response was, “Did we need scientists to tell us this?”

But I would argue that there is profundity in the obviousness of the data on happiness.

Sometimes, big data reveals a shocking secret. At other times, big data tells us that there is no secret. And that’s the case with happiness.

This is crucial to keep in mind for the many of us who are not doing the obvious things that make people happy. We are falling for traps that the data says are unlikely to make us happy.

Many of us work far too hard at jobs with people we don’t like — not a likely path to happiness. Dr. MacKerron and the economist Alex Bryson found that work is the second most miserable activity; of 40 activities, only being sick in bed makes people less happy than working. The economist Steven Levitt found that when people are uncertain whether to quit a job, they can be nudged to quit. And when they quit, they report increased happiness months later.

Many of us move to big cities and spend little time in nature — also not a path to happiness. A study by the economists Ed Glaeser and Josh Gottlieb ranked the happiness of every American metropolitan area. They found that New York City was just about the least happy. Boston, Los Angeles and San Francisco also scored low. The happiest places include Flagstaff, Arizona; Naples, Florida, and pretty much all of Hawaii. And when people move out of unhappy cities to happy places, they report increased happiness.

Many of us whittle away hours on social media — also not a path to happiness. The Mappiness project found that, of 27 leisure activities, social media ranks dead last in how much happiness it brings. A randomised controlled trial on the effects of social media found that when people were paid to stop using Facebook, they spent more time socialising and reported higher subjective well-being.

Big data tells us there are very simple things that do make people happy, things that have been around for thousands of years. After reading all the studies on happiness, I concluded that modern happiness research could be summed up in one sentence, a sentence we might jokingly call “the data-driven answer to life.”

The data-driven answer to life is as follows: Be with your love, on an 80-degree and sunny day, overlooking a beautiful body of water, having sex.

It’s a lot easier than owning an auto dealership.

This article originally appeared in The New York Times.

Seth Stephens-Davidowitz is the author of “Don’t Trust Your Gut: Using Data to Get What You Really Want in Life” and “Everybody Lies: Big Data, New Data, and What the Internet Can Tell Us About Who We Really Are.”

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