• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
Healthdecision making

This Man Wants to Stop You From Making Bad Decisions

By
Laura Entis
Laura Entis
Down Arrow Button Icon
By
Laura Entis
Laura Entis
Down Arrow Button Icon
March 18, 2017, 7:00 AM ET
Key Speakers At The 19th Annual Sohn Investment Conference
Bloomberg Bloomberg via Getty Images

Duke University behavioral economics professor Dan Ariely has dedicated much of his career to understanding how—and why—we make decisions. It’s a question that’s led him down some interesting roads academically: He’s authored dozens of studies on examining everything from familiarity can “breed contempt”, why we attach more value to something when we give it up versus when we acquire it, and the effects of self-serving altruism. More recently, it’s catapulted him into the public sphere.

Over the past decade, Ariely has mastered the art of making intimidating academic results more accessible. Through his books and TED talks, he turns his complex, often ambiguous research into digestible, evidence-backed takeaways on topics such as why we tend to justify our own bad behavior, or how conflicts of interest affect our personal goals. By popularizing the science driving our decision-making, he wants to help us make better ones.

He’s also taking a more direct approach—one that comes with a financial incentive. Today, Ariely is involved with a handful of startups that help us make better (or less stupid) decisions on important stuff, including money, health, and insurance.

Ariely joined Qapital, a digital financial planning startup aimed at millennials, as a “chief behavioral economist” in 2015. Drawing on his research, he worked with the company to design features such as ‘the guilty pleasure rule,’ which automatically saves a small amount each time a user orders a latte from Starbucks, say, or goes online shopping, and ‘the roundup rule,’ which does exactly what it says it will, converting odd pennies into savings. The overarching goal is to make saving money as frictionless as spending it.

He’s also a chief behavior officer at Lemonade, a New York-based insurance startup that just raised $34 million in Series B funding. When he first met with founders Daniel Schreiber and Shai Wininger in 2014, he was impressed by their technology but ambivalent about joining in an official capacity. That changed when he heard their goal: to create an insurance system that fostered trust, not suspicion, among its users.

As a behavioral economist, it was an intriguing problem to try and solve. “That’s when I became very excited,” he says. “As someone who has been studying conflicts of interest and dishonesty for 15 years, and I see how corrosive it can be.”

Under the traditional model, insurer’s and users’ incentives are fundamentally misaligned. Every successfully paid claim costs the insurance company money, hence the difficulty in getting them accepted in the first place (which, in turn, encourages fraudulent behavior in users, who often assume they’re getting screwed regardless). To correct for this, Lemonade takes 20% of premiums as a flat fee; when a policy ends, all unclaimed funds are donated to a nonprofit or charity, a rather elegant solution that removes the financial conflict of interest.

In addition to his role at Lemonade and Qapital (he has an equity stake in both companies), Ariely is the co-founder of Genie, a kitchen appliance that “cooks” nutritious cartridge meals (options include couscous and vegetables, chicken with rice, and miso ramen) in less than two minutes, and Shapa, a smart scale that displays shifts in weight on a five-point scale in lieu of pounds.

Both attempt to remove every-day obstacles—cooking and the counterproductive “loss aversion” we feel when we get on a scale and to find the number has inched up—that often stops us from making healthy decisions. This desire, to shape behavior via a series of gentle nudges, informs all of Ariely’s entrepreneurial work: “It’s about trying to take the research we know about what kind of mistakes people make, and figuring out how can we get people to make better decisions.”

Technology makes his job easier. “One of the principles from behavioral economics is that the environment matters,” he says. In a pre-digital world, this was hard to achieve at scale. But thanks to our smartphones, which, for many of us, are basically appendages at this point, “we can be part of your environment.” The more time we spend on our phones, the more seamlessly people like Ariely, through our various apps, trackers, and reminders, can control our behavior.

Of course, the reverse is also true. The more time we spend glued to our phones, the easier it is for people with the opposite goal—to distract us, to encourage spending, to keep us from going to the gym via online wormholes—to manipulate our actions.

About the Author
By Laura Entis
See full bioRight Arrow Button Icon

Latest in Health

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Leadership
  • Success
  • Tech
  • Asia
  • Europe
  • Environment
  • Fortune Crypto
  • Health
  • Retail
  • Lifestyle
  • Politics
  • Newsletters
  • Magazine
  • Features
  • Commentary
  • Mpw
  • CEO Initiative
  • Conferences
  • Personal Finance
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map

Latest in Health

flu season
PoliticsFlu Season
You’re not just imagining it—this flu season is officially severe with 45 states reporting high or very high activity
By Mike Stobbe and The Associated PressJanuary 6, 2026
6 hours ago
rfk
PoliticsVaccines
America’s pediatricians reel as government slashes vaccine requirements for children
By Ali Swenson, Lauran Neergaard and The Associated PressJanuary 5, 2026
1 day ago
Travel & Leisurework-life balance
Experts are divided on how workers should spend their 5-9: Structure is key for productivity, but can lead to burnout
By Jamie Wilde and Morning BrewJanuary 5, 2026
1 day ago
trump
EnvironmentWhite House
‘I want nice, thin blood pouring through my heart'”: Trump talks health concerns, saying he takes more aspirin than recommended
By Michelle L. Price and The Associated PressJanuary 2, 2026
4 days ago
aca
PoliticsHealth Insurance
Millions of Americans start the new year with spiking health insurance costs under latest version of Obamacare
By Ali Swenson and The Associated PressJanuary 2, 2026
4 days ago
Person checking their phone in bed
Successlifestyle
Even top CEOs check their phones first thing in the morning—these are the apps business executives are reaching for
By Emma BurleighJanuary 2, 2026
4 days ago

Most Popular

placeholder alt text
Personal Finance
Janet Yellen warns the $38 trillion national debt is testing a red line economists have feared for decades
By Eva RoytburgJanuary 5, 2026
1 day ago
placeholder alt text
AI
Experienced software developers assumed AI would save them a chunk of time. But in one experiment, their tasks took 20% longer
By Sasha RogelbergJanuary 5, 2026
1 day ago
placeholder alt text
Energy
‘Big Short’ investor Michael Burry says toppling of Venezuela’s Maduro will weaken Russia’s global standing as its oil ‘just became less important’
By Marco Quiroz-GutierrezJanuary 5, 2026
1 day ago
placeholder alt text
Success
Blackstone exec says elite Ivy League degrees aren’t good enough—new analysts need to 'work harder' and be nice 
By Ashley LutzJanuary 5, 2026
1 day ago
placeholder alt text
Economy
Under Biden, America got 150 countries to agree a 15% global corporate tax. Under Trump, America gets an exemption
By Fatima Hussein and The Associated PressJanuary 5, 2026
1 day ago
placeholder alt text
Personal Finance
Current price of silver as of Monday, January 5, 2026
By Joseph HostetlerJanuary 5, 2026
1 day ago

© 2025 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.