Matthew Ridley
@mw-ridley.bsky.social
Reposted by Matthew Ridley
Why are there so many small firms in poor countries? Building on Chandler (1977) to show that limited human capital constrains firm growth and the rise of large organizations, from Niklas Engbom, Hannes Malmberg, Tommaso Porzio, Federico Rossi, and Todd Schoellman www.nber.org/papers/w34483
November 22, 2025 at 2:01 PM
Why are there so many small firms in poor countries? Building on Chandler (1977) to show that limited human capital constrains firm growth and the rise of large organizations, from Niklas Engbom, Hannes Malmberg, Tommaso Porzio, Federico Rossi, and Todd Schoellman www.nber.org/papers/w34483
Reposted by Matthew Ridley
Fmr CASBS fellows David Yeager & Chris Bryan among the coauthors of this OPEN ACCESS article on "Using Large Language Models in Behavioral Science Interventions: Promise & Risk" @sagepub.com + @bescipol.bsky.social
journals.sagepub.com/doi/full/10....
journals.sagepub.com/doi/full/10....
Using Large Language Models in Behavioral Science Interventions: Promise & Risk - Cameron A. Hecht, Desmond C. Ong, Margarett Clapper, Michaela Jones, Dorottya Demszky, Diyi Yang, Johannes C. Eichstae...
Many behavioral science-based interventions, such as nudges and so-called psychologically wise interventions, seek to improve people’s lives by using words to s...
journals.sagepub.com
July 12, 2025 at 6:59 PM
Fmr CASBS fellows David Yeager & Chris Bryan among the coauthors of this OPEN ACCESS article on "Using Large Language Models in Behavioral Science Interventions: Promise & Risk" @sagepub.com + @bescipol.bsky.social
journals.sagepub.com/doi/full/10....
journals.sagepub.com/doi/full/10....
Reposted by Matthew Ridley
How culture and policy shape each other—and why paying attention to local context is key for development policies' success, from Natalie Bau, Sara Lowes, and Eduardo Montero https://www.nber.org/papers/w33947
July 1, 2025 at 6:00 PM
How culture and policy shape each other—and why paying attention to local context is key for development policies' success, from Natalie Bau, Sara Lowes, and Eduardo Montero https://www.nber.org/papers/w33947
Reposted by Matthew Ridley
Automation changes the value of labor by raising wages and reducing employment when it eliminates low-skill tasks, or lowering wages and increasing employment when it eliminates high-skill tasks, from David Autor and Neil Thompson https://www.nber.org/papers/w33941
June 29, 2025 at 5:00 PM
Automation changes the value of labor by raising wages and reducing employment when it eliminates low-skill tasks, or lowering wages and increasing employment when it eliminates high-skill tasks, from David Autor and Neil Thompson https://www.nber.org/papers/w33941
Reposted by Matthew Ridley
"Can communities sustain cooperation when players can add or erase signals from their records?
Sufficiently long-lived players can hardly sustain any cooperation, but players w/ intermediate lifespans can sustain some cooperation."
New paper from Harry PEI:
www.restud.com/community-en...
#econsky
Sufficiently long-lived players can hardly sustain any cooperation, but players w/ intermediate lifespans can sustain some cooperation."
New paper from Harry PEI:
www.restud.com/community-en...
#econsky
June 23, 2025 at 5:47 PM
"Can communities sustain cooperation when players can add or erase signals from their records?
Sufficiently long-lived players can hardly sustain any cooperation, but players w/ intermediate lifespans can sustain some cooperation."
New paper from Harry PEI:
www.restud.com/community-en...
#econsky
Sufficiently long-lived players can hardly sustain any cooperation, but players w/ intermediate lifespans can sustain some cooperation."
New paper from Harry PEI:
www.restud.com/community-en...
#econsky
Reposted by Matthew Ridley
Recently accepted to #REStud, "Overconfidence and Prejudice," from Heidhues, Kőszegi and Strack:
www.restud.com/overconfiden...
#econsky
www.restud.com/overconfiden...
#econsky
June 23, 2025 at 5:52 PM
Recently accepted to #REStud, "Overconfidence and Prejudice," from Heidhues, Kőszegi and Strack:
www.restud.com/overconfiden...
#econsky
www.restud.com/overconfiden...
#econsky
Reposted by Matthew Ridley
Examining how GDPR affected transatlantic venture investment using data from 2014 to 2019, from Jian Jia, Ginger Zhe Jin, Mario Leccese, and Liad Wagman https://www.nber.org/papers/w33909
June 18, 2025 at 1:00 PM
Examining how GDPR affected transatlantic venture investment using data from 2014 to 2019, from Jian Jia, Ginger Zhe Jin, Mario Leccese, and Liad Wagman https://www.nber.org/papers/w33909
Reposted by Matthew Ridley
On-the-job search leads to overvaluation of jobs, especially at the top of the job ladder, resulting in excess vacancy creation in the canonical search and matching model, from Masao Fukui and Toshihiko Mukoyama https://www.nber.org/papers/w33910
June 18, 2025 at 3:00 PM
On-the-job search leads to overvaluation of jobs, especially at the top of the job ladder, resulting in excess vacancy creation in the canonical search and matching model, from Masao Fukui and Toshihiko Mukoyama https://www.nber.org/papers/w33910
Reposted by Matthew Ridley
Combining field experiments and a new model to study salary negotiations, from Zoë B. Cullen, Bobak Pakzad-Hurson, and Ricardo Perez-Truglia https://www.nber.org/papers/w33903
June 15, 2025 at 1:00 PM
Combining field experiments and a new model to study salary negotiations, from Zoë B. Cullen, Bobak Pakzad-Hurson, and Ricardo Perez-Truglia https://www.nber.org/papers/w33903
Reposted by Matthew Ridley
Governments invest a lot in public transit, but in developing countries transit is already privately provided. Examining how the private response shapes the impact of these investments, from Daniel Björkegren, Alice Duhaut, Geetika Nagpal, and Nick Tsivanidis https://www.nber.org/papers/w33899
June 13, 2025 at 5:00 PM
Governments invest a lot in public transit, but in developing countries transit is already privately provided. Examining how the private response shapes the impact of these investments, from Daniel Björkegren, Alice Duhaut, Geetika Nagpal, and Nick Tsivanidis https://www.nber.org/papers/w33899
Reposted by Matthew Ridley
Analyzing the decline of America's new housing supply, focusing on large sunbelt markets that were once building superstars, from Edward L. Glaeser and Joseph Gyourko https://www.nber.org/papers/w33876
June 6, 2025 at 5:00 PM
Analyzing the decline of America's new housing supply, focusing on large sunbelt markets that were once building superstars, from Edward L. Glaeser and Joseph Gyourko https://www.nber.org/papers/w33876
Reposted by Matthew Ridley
Forthcoming book review in the JEL: "We Are Not Able to Live in the Sky: The Seductive Promise of Microfinance by Mara Kardas-Nelson" by R. Meager. www.aeaweb.org/articles?id=...
We Are Not Able to Live in the Sky: The Seductive Promise of Microfinance by Mara Kardas-Nelson
(Forthcoming Article)
www.aeaweb.org
June 2, 2025 at 2:00 PM
Forthcoming book review in the JEL: "We Are Not Able to Live in the Sky: The Seductive Promise of Microfinance by Mara Kardas-Nelson" by R. Meager. www.aeaweb.org/articles?id=...
Reposted by Matthew Ridley
Recently accepted to #REStud, ``Extreme Categories and Overreaction to News," from Kwon and Tang:
www.restud.com/extreme-cate...
#EconSky
www.restud.com/extreme-cate...
#EconSky
June 2, 2025 at 6:11 PM
Recently accepted to #REStud, ``Extreme Categories and Overreaction to News," from Kwon and Tang:
www.restud.com/extreme-cate...
#EconSky
www.restud.com/extreme-cate...
#EconSky
Reposted by Matthew Ridley
Li, @lindseyraymond.bsky.social & @peterbergman.bsky.social show that incorporating exploration into an interview screening algorithm improves demographic diversity & hiring efficiency, while traditional supervised learning-only tools improve hiring rates at the expense of minority applicants.
👇
👇
June 2, 2025 at 6:31 PM
Li, @lindseyraymond.bsky.social & @peterbergman.bsky.social show that incorporating exploration into an interview screening algorithm improves demographic diversity & hiring efficiency, while traditional supervised learning-only tools improve hiring rates at the expense of minority applicants.
👇
👇
Reposted by Matthew Ridley
"Their persuasive account illustrates how tentative conclusions proclaimed by the powerful can harden into orthodoxies."
@newyorker.com editors feature Dennis Patterson & Jacob Hale Russell's "The Weaponization of Expertise" among their favorite new books: www.newyorker.com/best-books-2...
@newyorker.com editors feature Dennis Patterson & Jacob Hale Russell's "The Weaponization of Expertise" among their favorite new books: www.newyorker.com/best-books-2...
May 24, 2025 at 9:40 PM
"Their persuasive account illustrates how tentative conclusions proclaimed by the powerful can harden into orthodoxies."
@newyorker.com editors feature Dennis Patterson & Jacob Hale Russell's "The Weaponization of Expertise" among their favorite new books: www.newyorker.com/best-books-2...
@newyorker.com editors feature Dennis Patterson & Jacob Hale Russell's "The Weaponization of Expertise" among their favorite new books: www.newyorker.com/best-books-2...
Reposted by Matthew Ridley
A study of university employees during COVID-19 finds that an employee's identity with work, sharing their employer's values, and their own effort and accomplishments combine to contribute to the employee's mental health, from Rachel Kranton and Duncan Thomas https://www.nber.org/papers/w33812
May 24, 2025 at 1:00 PM
A study of university employees during COVID-19 finds that an employee's identity with work, sharing their employer's values, and their own effort and accomplishments combine to contribute to the employee's mental health, from Rachel Kranton and Duncan Thomas https://www.nber.org/papers/w33812
Reposted by Matthew Ridley
Researcher incentives for expanding versus deepening knowledge often align with social incentives, from @joshgans.bsky.social https://www.nber.org/papers/w33815
May 24, 2025 at 7:00 PM
Researcher incentives for expanding versus deepening knowledge often align with social incentives, from @joshgans.bsky.social https://www.nber.org/papers/w33815
Reposted by Matthew Ridley
"The Cost of Conviction" offers a new perspective on how people frame decisions and how relying on sacred values unwittingly leads to social polarization: mitpress.mit.edu/978026204982...
May 20, 2025 at 5:19 PM
"The Cost of Conviction" offers a new perspective on how people frame decisions and how relying on sacred values unwittingly leads to social polarization: mitpress.mit.edu/978026204982...
Reposted by Matthew Ridley
In this Perspective, @amiraskeggs.bsky.social and @orbenamy.bsky.social review current interventions on social media use among adolescents and propose a new theoretical model to guide the effective design and research of such interventions.
www.nature.com/articles/s41...
#socialmedia #wellbeing
www.nature.com/articles/s41...
#socialmedia #wellbeing
Social media interventions to improve well-being - Nature Human Behaviour
In this Perspective, the authors review current interventions on social media use among adolescents and propose a new theoretical model based on self-determination theory to guide the effective design...
www.nature.com
May 15, 2025 at 5:14 PM
In this Perspective, @amiraskeggs.bsky.social and @orbenamy.bsky.social review current interventions on social media use among adolescents and propose a new theoretical model to guide the effective design and research of such interventions.
www.nature.com/articles/s41...
#socialmedia #wellbeing
www.nature.com/articles/s41...
#socialmedia #wellbeing
Reposted by Matthew Ridley
👩🏽💼💬 Can a simple nudge within households shift norms around women’s work?
An @nber.org RCT by J-PAL affiliate Namrata Kala, and coauthor Madeline McKelway finds that a light-touch communication intervention can meaningfully raise women’s employment rates.
📄 buff.ly/ao6mCWl
An @nber.org RCT by J-PAL affiliate Namrata Kala, and coauthor Madeline McKelway finds that a light-touch communication intervention can meaningfully raise women’s employment rates.
📄 buff.ly/ao6mCWl
May 14, 2025 at 2:49 PM
👩🏽💼💬 Can a simple nudge within households shift norms around women’s work?
An @nber.org RCT by J-PAL affiliate Namrata Kala, and coauthor Madeline McKelway finds that a light-touch communication intervention can meaningfully raise women’s employment rates.
📄 buff.ly/ao6mCWl
An @nber.org RCT by J-PAL affiliate Namrata Kala, and coauthor Madeline McKelway finds that a light-touch communication intervention can meaningfully raise women’s employment rates.
📄 buff.ly/ao6mCWl
Reposted by Matthew Ridley
Studying the determinants of poor mental health among students at an elite private institution, from David G. Blanchflower and Bruce Sacerdote https://www.nber.org/papers/w33742
May 7, 2025 at 9:00 PM
Studying the determinants of poor mental health among students at an elite private institution, from David G. Blanchflower and Bruce Sacerdote https://www.nber.org/papers/w33742
Reposted by Matthew Ridley
Deriving conditions and evidence on female genital cutting in Somalia to examine whether intermediate actions act as stepping stones to transition away from "bad norms" or whether they become new norms, from Gulesci, Jindani, La Ferrara, Smerdon, Sulaiman and Young https://www.nber.org/papers/w33734
May 6, 2025 at 3:00 PM
Deriving conditions and evidence on female genital cutting in Somalia to examine whether intermediate actions act as stepping stones to transition away from "bad norms" or whether they become new norms, from Gulesci, Jindani, La Ferrara, Smerdon, Sulaiman and Young https://www.nber.org/papers/w33734
Reposted by Matthew Ridley
Productivity gains don’t always lead to higher pay. Our latest Policy Insight highlights the need for policies that help workers share fairly in the value they create. Read more: buff.ly/JsAovM6...
Workplace interventions to improve worker well-being
Firm-level interventions aimed at improving the well-being of workers have led to safer workplaces, greater worker health, higher job satisfaction, and lower turnover. In some cases, these programs al...
www.povertyactionlab.org
May 6, 2025 at 6:54 PM
Productivity gains don’t always lead to higher pay. Our latest Policy Insight highlights the need for policies that help workers share fairly in the value they create. Read more: buff.ly/JsAovM6...
Reposted by Matthew Ridley
Recently accepted to #REStud, ``Finite Sample Inference for the Maximum Score Estimand,'' from Rosen and Ura:
www.restud.com/finite-sampl...
www.restud.com/finite-sampl...
January 2, 2025 at 11:49 PM
Recently accepted to #REStud, ``Finite Sample Inference for the Maximum Score Estimand,'' from Rosen and Ura:
www.restud.com/finite-sampl...
www.restud.com/finite-sampl...
Reposted by Matthew Ridley
In this new Registered Report, Gligorić et al. identify partisan differences in trust in scientists in the U.S. and find that several interventions fail to increase trust among conservatives.
https://www.nature.c...
#trustinscientists #scientists #ideology #trust
https://www.nature.c...
#trustinscientists #scientists #ideology #trust
Political ideology and trust in scientists in the USA - Nature Human Behaviour
In this Registered Report, Gligorić et al. find that liberals in the USA tend to have higher trust in most scientists compared with conservatives. However, they find no evidence that a series of interventions improve conservatives’ trust in scientists.
www.nature.com
April 14, 2025 at 6:23 PM
In this new Registered Report, Gligorić et al. identify partisan differences in trust in scientists in the U.S. and find that several interventions fail to increase trust among conservatives.
https://www.nature.c...
#trustinscientists #scientists #ideology #trust
https://www.nature.c...
#trustinscientists #scientists #ideology #trust