• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
TechAI
Europe

Nobel Prize-winning economist who said ChatGPT would result in a four-day workweek says the past 12 months have only further convinced him he’s right

Prarthana Prakash
By
Prarthana Prakash
Prarthana Prakash
Europe Business News Reporter
Down Arrow Button Icon
Prarthana Prakash
By
Prarthana Prakash
Prarthana Prakash
Europe Business News Reporter
Down Arrow Button Icon
December 2, 2023, 6:00 AM ET
a picture of chris pissarides
Christopher Pissarides won the Nobel Prize in 2010 for his work on the economic effects of unemployment.Cezaro De Luca/Europa Press via Getty Images

Few recent technology launches have created as much buzz—and handwringing—as ChatGPT since it was unveiled one year ago.

After its public launch on Nov. 30, 2022, ChatGPT’s promise inspired a series of wild predictions about how tools of its ilk may upend the jobs market. These ranged from prompting an end to the human-dominated era to transforming jobs as we know them in the coming years.

Attracting special attention was one prediction spearheaded by Christopher Pissarides, a Nobel Prize laureate and London School of Economics professor who specializes in labor economics and the impact of automation.

Back in April, Pissarides predicted that generative AI would enable employees to be more productive in their roles and therefore spend less time on them. In other words, with the help of a tool like ChatGPT a four-day workweek could become a widespread norm.

A few months on—as attention has turned toward safety regulations and other companies have launched rival generative AI platforms—Pissarides feels even more certain about his prediction.

“Now, I do believe that [ChatGPT] will improve the quality of work and probably improve productivity even more,” he said in an interview with Fortune, adding that his thoughts on a possible shorter workweek are “more justified.”

Pissarides is far from alone. A recent study by think tank Autonomy looked into how AI-driven productivity increases could usher in a four-day workweek in the U.S. and U.K.

Legendary investor Ray Dalio also alluded to the possibility of a shortened week as AI becomes more widely adopted, while JPMorgan Chase CEO Jamie Dimon says future workers will be at their desks just 3.5 days a week.

Still, while signs point to a growing likelihood of a shorter workweek the question of AI’s impact on pay remains unanswered.

Pissarides believes despite fears that fewer hours at work could result in a loss in pay, that won’t necessarily be the case.

“Pay will not fall because of improvements in productivity,” Pissarides said. “Things will be done faster with ChatGPT, for example, with AI. We’d be able to do in four days what we’re doing in five days in many professions.”

Cycle of fear

Pissarides, who won a Nobel Prize in 2010 along with two other academics for their research on the economic effects of unemployment, says earlier automation tech—like robotics—were also expected to yield better outcomes than relying solely on human labor.

“We’ve always believed that automation technologies would improve productivity—and they would improve sufficiently [to] be doing better with time,” he told Fortune. Still, automation tools have long awakened “alarmist” estimates of automation taking over a large chunk of jobs.

The same is happening today with AI, as forecasts point to job losses to the tune of 300 million globally, according to Goldman Sachs.

AI has awakened new worries as well. Fears about AI misuse have been raised by industry experts, including Geoffrey Hinton, who is known as the “Godfather of AI.” In May, he said it could be hard to prevent bad actors from using the tech for harmful purposes. Hinton, who previously worked at Google, also said AI could manipulate humans and potentially outsmart them.

But Pissarides thinks it’s hard to make such predictions about AI because a lot about the tech still remains unknown.

“AI is different because there’s a lot more uncertainty about where it’s going next [and] uncertainty about its capabilities,” Pissarides said. “It’s a lot more difficult to predict where AI is going because we don’t know in which direction inventors … are going to develop it.”

AI in the workplace: Make it a friend

While AI can be used for good and bad, many in the business world agree AI will likely be a useful co-pilot to human counterparts. Tech giant IBM’s CEO Arvind Krishna wrote in a Fortune op-ed earlier this year that AI could help “tackle the kind of tasks most people find repetitive, which frees up employees to take on higher-value work.”

And a year since ChatGPT was made available to consumers, Pissarides thinks that’s the reason it has gained as much traction as it has.

“It’s much easier to identify things that we do at work that are very close to the capabilities of ChatGPT,” he said.

In the past, it was also much more expensive and computing power-intensive to put AI tools to use, which made it harder for companies to adapt such technologies. But as ChatGPT helps bridge that gap in price and computation power, Pissarides says he’s seeing employers starting to be more optimistic about the tech as an assistant to its employees.

“It’s a happier work place … more satisfied people at work,” he said.

It could take a few years before this reflects in productivity figures—although Pissarides cautions that it will require other factors including greater tech investment and supportive policies before society reaps AI’s benefits in earnest.

It ultimately comes down to the type of tasks AI is entrusted with—a study by Boston Consulting Group found that performance was boosted by 40% for some groups assigned on a creative project, while plunging 23% on business problem-solving tasks.

Even though Nov. 30 marks an important milestone in the AI journey, the path forward is not set in stone, Pissarides points out.

“It’s still a matter of choice,” he pointed out, referring to how AI is used.

Join us at the Fortune Workplace Innovation Summit May 19–20, 2026, in Atlanta. The next era of workplace innovation is here—and the old playbook is being rewritten. At this exclusive, high-energy event, the world’s most innovative leaders will convene to explore how AI, humanity, and strategy converge to redefine, again, the future of work. Register now.
About the Author
Prarthana Prakash
By Prarthana PrakashEurope Business News Reporter
LinkedIn icon

Prarthana Prakash was a Europe business reporter at Fortune.

See full bioRight Arrow Button Icon

Latest in Tech

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
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Most Popular

placeholder alt text
C-Suite
Meet Jody Allen, the billionaire owner of the Seattle Seahawks, who plans to sell the team and donate the proceeds to charity
By Jake AngeloFebruary 9, 2026
8 hours ago
placeholder alt text
AI
As billionaires bail, Mark Zuckerberg doubles down on California with $50 million donation
By Sydney LakeFebruary 9, 2026
11 hours ago
placeholder alt text
Economy
China might be beginning to back away from U.S. debt as investors get nervous about overexposure to American assets
By Eleanor PringleFebruary 9, 2026
16 hours ago
placeholder alt text
Economy
Elon Musk warns the U.S. is '1,000% going to go bankrupt' unless AI and robotics save the economy from crushing debt
By Jason MaFebruary 7, 2026
2 days ago
placeholder alt text
Commentary
America marks its 250th birthday with a fading dream—the first time that younger generations will make less than their parents
By Mark Robert Rank and The ConversationFebruary 8, 2026
2 days ago
placeholder alt text
Economy
Russian officials are warning Putin that a financial crisis could arrive this summer, report says, while his war on Ukraine becomes too big to fail
By Jason MaFebruary 8, 2026
1 day ago

© 2026 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.


Latest in Tech

Photo of Elon Musk
C-SuiteElon Musk
‘Don’t look at the résumé’: Elon Musk admits he’s ‘fallen prey’ to flashy credentials but says conversation matters most when hiring
By Jacqueline MunisFebruary 9, 2026
8 hours ago
amodei
AIAdvertising
Scott Galloway on why that Anthropic Super Bowl ad got under Sam Altman’s skin and exposed ‘therapy’ as the AI use case
By Nick LichtenbergFebruary 9, 2026
8 hours ago
journalists
CommentaryMedia
I’m a war gamer for the Navy and I know why you don’t trust the media anymore. It’s fighting yesterday’s battles
By Charles Edward Gehrke and The ConversationFebruary 9, 2026
8 hours ago
kiara
AIstart-ups
Exclusive: Peter Thiel–backed industrial AI startup emerges from stealth in a16z ‘American Dynamism’ push
By Nick LichtenbergFebruary 9, 2026
11 hours ago
Photo of Mark Zuckerberg
AIMeta
As billionaires bail, Mark Zuckerberg doubles down on California with $50 million donation
By Sydney LakeFebruary 9, 2026
11 hours ago
Thasunda Brown Duckett, TIAA CEO, speaks onstage during a live taping of "Earn Your Leisure" at Martin Luther King Jr. International Chapel at Morehouse College on January 22, 2024 in Atlanta, Georgia.
FinanceFortune 500 Companies
Meet the 10 Black Fortune 500 CEOs leading companies with over $412 billion in combined revenues
By Cheyann HarrisFebruary 9, 2026
13 hours ago