Edward Conard

Top Ten New York Times Bestselling Author

  • “Unintended Consequences offers deep and well-argued analyses on almost every issue.” - The New York Times
  • “…reminds us that inequality sends a signal of what society lacks most, in America’s case, entrepreneurship and risk taking.” - Lawrence Lindsey, CEO, The Lindsey Group, former Director of the National Economic Council
  • “Unintended Consequences represents the most cogent and persuasive analysis of the Financial Crisis to date.” - Andrei Shleifer, 1999 John Bates Clark Medal Winner
  • “…a comprehensive explanation of the modern economy.” - Julian Robertson, Founder, Tiger Management
  • “…a comprehensive explanation of the modern economy.” - Julian Robertson, Founder, Tiger Management
  • “A full-throated defense of economic dynamism.” - The Wall Street Journal
  • “…reminds us that inequality sends a signal of what society lacks most, in America’s case, entrepreneurship and risk taking.” - Lawrence Lindsey, CEO, The Lindsey Group, former Director of the National Economic Council
  • “…a must-read for serious students of economic policy.” - Glenn Hubbard, Dean, Columbia Business School, and former Chairman of the Council of Economic Advisers
  • “Unintended Consequences is full of substance, it is one of the must-read books of the year, and once I finish it I will be giving it a second read through right away.” - Tyler Cowen, Professor, George Mason University
  • “…serious thinking for serious thinkers. …a thought-provoking blueprint for growing middle- and working-class incomes.” - Mitt Romney, former Governor of Massachusetts
  • “…a very valuable contribution.” - Larry Summers, former Secretary of the Treasury and director of the National Economic Council, president emeritus, Harvard University
  • “…a must-read for serious students of economic policy.” - Glenn Hubbard, Dean, Columbia Business School, and former Chairman of the Council of Economic Advisers
Upside of Inequality Oxford Unintended Consequences

AI Summary. ChatGPT had been adopted by around 10% of the world's adult population, with non-work messages growing from 53% to more than 70% of usage; work usage is more common among educated users in highly paid professional occupations. The authors find "Practical Guidance," "Seeking Information," and "Writing" account for nearly 80% of conversations.

Aaron Chatterji, Thomas Cunningham, David Deming, Zoe Hitzig, et al. National Bureau of Economic Research
Date Posted:

As of July 2025, ChatGPT was used at least weekly by ~10% of the global adult population. 70% of usage was non-work related. Work usage was most common for educated users in high-pay professional occupations.

How do people actually use ChatGPT?

Core argument: ChatGPT had been adopted by around 10% of the world's adult population by July 2025, less than three years after its November 2022 launch, with an early male skew that has narrowed dramatically.

We document the growth of ChatGPT’s consumer product from its launch in November 2022 through July 2025, when it had been adopted by around 10% of the world’s adult population. Early adopters were disproportionately male but the gender gap has narrowed dramatically. Using a privacy-preserving automated pipeline, we classify usage patterns within a representative sample of ChatGPT conversations. We find steady growth in work-related messages but even faster growth in non-work-related messages, which have grown from 53% to more than 70% of all usage. Work usage is more common for educated users in highly-paid professional occupations. We classify messages by conversation topic and find that “Practical Guidance,” “Seeking Information,” and “Writing” are the three most common topics and collectively account for nearly 80% of all conversations. Writing dominates work-related tasks, highlighting chatbots’ unique ability to generate digital outputs compared to traditional search engines. Computer programming and self-expression both represent relatively small shares of use. Overall, we find that ChatGPT provides economic value through decision support, which is especially important in knowledge-intensive jobs.

Takeaways by Macro Roundup® AI

  1. ChatGPT had been adopted by around 10% of the world's adult population by July 2025, less than three years after its November 2022 launch, with an early male skew that has narrowed dramatically.
  2. Non-work-related messages grew from 53% to more than 70% of all ChatGPT usage, outpacing steady growth in work-related messages, with work usage more common among educated users in highly-paid professional occupations.
  3. "Practical Guidance," "Seeking Information," and "Writing" account for nearly 80% of ChatGPT conversations, with Writing dominating work-related tasks while computer programming and self-expression represent relatively small shares.

Related Articles:

  • Canaries in the Coal Mine? Six Facts about the Recent Employment Effects of Artificial Intelligence — Using payroll records covering millions of US workers, the authors find employment for workers aged 22–25 in occupations most exposed to artificial intelligence, such as software developers and customer service representatives, declined 6%, while employment for older workers in those occupations rose 6–9%. Employment in less-exposed occupations grew comparably across age groups.
  • Shorting the AI Jobs Apocalypse — Employment for workers aged 22-25 and 26-30 has declined relative to its pre-ChatGPT trend and relative to older workers in the same occupation, but the age groups shown are not equally sized. The authors argue that combining all age groups shows software developer jobs have continued to grow overall.
  • The Rapid Adoption of Generative AI — A nationally representative U.S. survey found 39% of people aged 18-64 used generative AI, with more than 24% of workers using it in the prior week and nearly one in nine using it every workday. The authors estimate 0.5-3.5% of U.S. work hours are currently assisted by generative AI.
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