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Lars Tummers

@tummers

๐Ÿ‘จโ€๐ŸŽ“ Professor at Utrecht University. ๐Ÿ“ฐ Monthly insights about leadership and behavior at work via my newsletter Work Notes. Sign up via www.larstummers.com

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15.11.2024
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Latest posts by Lars Tummers @tummers

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Need a mental break? Avoid your cellphone Using a cellphone to take a break during mentally challenging tasks does not allow the brain to recharge effectively and may result in poorer performance, researchers found.

Many of us check our phones during a break.

I do too.

But your brain stays "on".

Focus experts advise us to do nothing so we can recharge. Feels boring (it is!), but your brain will thank you.

10.03.2026 10:14 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Very cool study. LQ continues to publish top-notch pieces. Criterion: Wilma loves it!

09.03.2026 16:40 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Discrimination Against People With Disabilities in Hiring and Strategies to Reduce It: Evidence From Resumes

Discrimination Against People With Disabilities in Hiring and Strategies to Reduce It: Evidence From Resumes

โ™ฟ People with disabilities are discriminated against when applying for jobs.

Ask most employers, and theyโ€™ll say: โ€œ๐–๐ž ๐๐จ๐งโ€™๐ญ ๐๐ข๐ฌ๐œ๐ซ๐ข๐ฆ๐ข๐ง๐š๐ญ๐ž.โ€

So we tested it. We sent 1,500 real job applications.

The result? ๐Ž๐ซ๐ ๐š๐ง๐ข๐ณ๐š๐ญ๐ข๐จ๐ง๐ฌ ๐๐ข๐ ๐๐ข๐ฌ๐œ๐ซ๐ข๐ฆ๐ข๐ง๐š๐ญ๐ž. There is a gap between what employers SAY and what they DO.

09.03.2026 11:19 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Testing the babble hypothesis. The Leadership Quarterly. https://www.sciencedirect.com/science/article/abs/pii/S1048984320300369?via%3Dihub

Testing the babble hypothesis. The Leadership Quarterly. https://www.sciencedirect.com/science/article/abs/pii/S1048984320300369?via%3Dihub

Not the smartest people become leaders. Itโ€™s the ones who talk the most.

This is known as the Babble Hypothesis.

๐Ÿ‘‰ Their finding:
Regardless of intelligence or expertise, groups often pick the person who talks the most as their leader.

www.sciencedirect.com/science/arti...

05.03.2026 08:09 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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How Do You Find a Good Manager? Founded in 1920, the NBER is a private, non-profit, non-partisan organization dedicated to conducting economic research and to disseminating research findings among academics, public policy makers, an...

๐๐ž๐จ๐ฉ๐ฅ๐ž ๐ฐ๐ก๐จ ๐ซ๐ž๐š๐ฅ๐ฅ๐ฒ ๐ฐ๐š๐ง๐ญ ๐ญ๐จ ๐›๐ž ๐ญ๐ก๐ž ๐›๐จ๐ฌ๐ฌ ๐š๐ซ๐ž ๐จ๐Ÿ๐ญ๐ž๐ง ๐ช๐ฎ๐ข๐ญ๐ž ๐›๐š๐ ๐š๐ญ ๐ข๐ญ.

"People who nominate themselves to be in charge perform worse than managers appointed by lottery, in part because self-promoted managers are overconfident, especially about their social skills."

Cool new paper on #leadership!

02.03.2026 13:26 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
39 wetenschappers ontvangen Vici-beurs | NWO Wat is de welzijnsmuur en waarom lopen we er tegenaan? Hoe bedreigen bliksembranden permafrostbodems? Hoe vervang je bestrijdingsmiddelen met aardappelmicrobioom? Hoe is de communicatie tussen breincellen verstoord na een hartstilstand en hoe kan die worden hersteld? Dit zijn vier van de 39 onderzoeksprojecten van wetenschappers die een Vici-beurs hebben gekregen. Elke onderzoeker ontvangt maximaal anderhalf miljoen. De beurs is een stimulans voor avontuurlijke, talentvolle en baanbrekende onderzoekers.

Hoera! Een NWO Viciโ€‘beurs!๐ŸŽ‰

Miljoenen mensen kunnen ontsnappen aan armoede met hulp van de overheid, maar doen geen aanvraag voor bijvoorbeeld huurtoeslag.

Ze lopen tegen barriรจres aan. Ik noem dit welzijnsmuren: Welfare Walls.

Wil je het onderzoek volgen? Laat het weten of mail L.G.Tummers@uu.nl

26.02.2026 09:04 ๐Ÿ‘ 3 ๐Ÿ” 1 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Opinie | De ideale, inclusieve arbeidsmarkt is nog ver weg Discriminatie: Mensen met een beperking hebben nog altijd minder kans om uitgenodigd te worden voor een sollicitatiegesprek. Dat komt de arbeidsmarkt niet ten goede, stellen Rosanna Nagtegaal en Lars ...

Meer informatie:

NRC: www.nrc.nl/nieuws/2024/...
Artikel: www.tandfonline.com/doi/full/10....

11.02.2026 11:00 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Er zijn ook lichtpuntjes.

Werkgevers staan positief tegenover proefplaatsingen en trainingen.

Maar de vraag blijft: is dat genoeg om een structurele verandering te realiseren?

De inclusieve arbeidsmarkt is helaas nog ver weg.

11.02.2026 11:00 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

๐Ÿ‘. ๐๐ž๐ฅ๐ž๐ข๐๐ฌ๐ฉ๐ซ๐จ๐›๐ฅ๐ž๐ž๐ฆ
Veel organisaties hebben geen beleid voor het aannemen van mensen met een beperking.

11.02.2026 11:00 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

๐Ÿ. ๐๐จ๐ฌ๐ข๐ญ๐ข๐ž๐ฉ๐ซ๐จ๐›๐ฅ๐ž๐ž๐ฆ
Werkgevers zien geen passende functies binnen hun organisatie.

11.02.2026 11:00 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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Dus vroegen wij ons af:

๐Ÿ‘‰ Wat houdt werkgevers tegen om inclusiever te werven?

In ons nieuwe onderzoek onder meer dan 500 werkgevers vonden we drie barriรจres:

๐Ÿ. ๐Š๐ž๐ง๐ง๐ข๐ฌ๐ฉ๐ซ๐จ๐›๐ฅ๐ž๐ž๐ฆ
Werkgevers hebben onvoldoende kennis over regelgeving.

11.02.2026 11:00 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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๐–๐ž๐ซ๐ค๐ ๐ž๐ฏ๐ž๐ซ๐ฌ ๐๐ข๐ฌ๐œ๐ซ๐ข๐ฆ๐ข๐ง๐ž๐ซ๐ž๐ง ๐ค๐š๐ง๐๐ข๐๐š๐ญ๐ž๐ง ๐ฆ๐ž๐ญ ๐ž๐ž๐ง ๐›๐ž๐ฉ๐ž๐ซ๐ค๐ข๐ง๐ .

Een overzichtsstudie van Louis Lippens en collega's toont aan dat mensen met een beperking 41% minder kans hebben om uitgenodigd te worden voor een sollicitatiegesprek.

11.02.2026 11:00 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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Breaking Down Administrative Burdens: A User-Centered Approach to Increase Interest in Active Labor Market Programs by Women Abstract. This study investigates whether reducing administrative burdens can increase interest in active labor market programs among job-seeking women. Em

New JPART article on Administrative Burdens

Including work by @martinbaekgaard.bsky.social @donmoyn.bsky.social @spbhanot.bsky.social @matdoering.bsky.social @mkfeeney.bsky.social @sebjilke.bsky.social @flokeppeler.bsky.social @elizabethlinos.bsky.social @liamdelaney2025.bsky.social & more.

04.02.2026 12:14 ๐Ÿ‘ 2 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Breaking Down Administrative Burdens: A User-Centered Approach to Increase Interest in Active Labor Market Programs by Women Abstract. This study investigates whether reducing administrative burdens can increase interest in active labor market programs among job-seeking women. Em

New article in JPART on administrative burdens.

We examine how collaborating with citizens can help break down such burdens.

The paper speaks to debates in public administration on policy design and citizenโ€“state interactions.

@jpart1991.bsky.social

04.02.2026 12:14 ๐Ÿ‘ 5 ๐Ÿ” 2 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
A graph titled "Cost of Transport" showing the relationship between body weight (in kilograms) and energy consumption for distance traveled (calories per gram per kilometer) for various animals and machines. It highlights that a person on a bicycle ranks first in efficiency.

A graph titled "Cost of Transport" showing the relationship between body weight (in kilograms) and energy consumption for distance traveled (calories per gram per kilometer) for various animals and machines. It highlights that a person on a bicycle ranks first in efficiency.

A person on a bicycle is by far the most energy-efficient among animals and machines per distance traveled relative to body weight. The bicycle is magic.

www.jstor.org/stable/24923...

24.11.2024 23:12 ๐Ÿ‘ 7831 ๐Ÿ” 1708 ๐Ÿ’ฌ 274 ๐Ÿ“Œ 247
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Laptops Are Great. But Not During a Lecture or a Meeting. (Published 2017)

The link to the article in @nytimes.com:

www.nytimes.com/2017/11/22/b...

28.11.2025 09:00 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Typed Versus Handwritten Lecture Notes and College Student Achievement: A Meta-Analysis - Educational Psychology Review Many college students prefer to type their lecture notes rather than write them by hand. As a result, the number of experimental and quasi-experimental studies comparing these two note-taking mediums ...

The meta-analysis:

Flanigan, A. E., Wheeler, J., Colliot, T., Lu, J., & Kiewra, K. A. (2024). Typed versus handwritten lecture notes and college student achievement: A meta-analysis. Educational Psychology Review, 36(3), 78.

28.11.2025 09:00 ๐Ÿ‘ 3 ๐Ÿ” 0 ๐Ÿ’ฌ 2 ๐Ÿ“Œ 0
https://www.nytimes.com/2017/11/22/business/laptops-not-during-lecture-or-meeting.html Laptops Are Great. But Not During a Lecture or a Meeting.

https://www.nytimes.com/2017/11/22/business/laptops-not-during-lecture-or-meeting.html Laptops Are Great. But Not During a Lecture or a Meeting.

๐Ÿ’ป Laptops are great, but not during class. ๐Ÿ’ป

Laptops are the standard in classrooms. This needs to change.

New meta-analysis of 24 experiments shows that handwriting will lead to higher grades for students.

So this 2017 NYTimes op-ed by @dynarski.bsky.social is even truer today.

28.11.2025 09:00 ๐Ÿ‘ 27 ๐Ÿ” 13 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 2

I do like golden retrievers, I must confess ๐Ÿ•๐Ÿ˜€

28.11.2025 08:52 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Out of sight, out of mind?: telework and gender inequality in performance appraisals Do public managers favor office workers over teleworkers? This study examines managersโ€™ cognitive biases in employee performance appraisals, focusing on proximity and gender bias. A survey experime...

Source: Ju Won Park (2025, in press). Out of sight, out of mind?: telework and gender inequality in performance appraisals. Public Management Review.

@pmreview.bsky.social

28.11.2025 03:01 ๐Ÿ‘ 4 ๐Ÿ” 2 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Note that the vertical axis in the figure starts at 46, not 0. But even when it would have, the results are the same (although less pronounced in a figure): working from home hurts performance evaluations, and it's more detrimental for women.

Note that the vertical axis in the figure starts at 46, not 0. But even when it would have, the results are the same (although less pronounced in a figure): working from home hurts performance evaluations, and it's more detrimental for women.

๐Ÿ“ฃ Working from home results in lower performance ratings๐Ÿ“ฃ

Managers give lower performance ratings to teleworkers than to office workers, even when holding performance constant.

Female teleworkers face an even greater disadvantage.

28.11.2025 03:01 ๐Ÿ‘ 15 ๐Ÿ” 9 ๐Ÿ’ฌ 3 ๐Ÿ“Œ 1

We cite work by @ernaruijer.bsky.social @mbusuioc.bsky.social @nathanfavero.com @profgeorgebert.bsky.social @inesmergel.bsky.social & many more.

25.11.2025 09:48 ๐Ÿ‘ 2 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

We show that Digital Transformation Leadership comprises two dimensions.

First, a Strategic dimension: how managers develop a vision, foster collaboration, and consider public preferences.

Second, an Operational dimension: how managers guide employees, internal processes, and outputs.

25.11.2025 09:48 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

led by @henricovanroekel.bsky.social, with
@albertmeijer.bsky.social and Martiene Branderhorst.

25.11.2025 09:48 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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Digital transformation leadership: A public value-centered measurement scale We introduce a psychometrically validated scale to measure Digital Transformation Leadership in public organizations. As governments adopt new digitalโ€ฆ

For the article in GIQ, see

25.11.2025 09:48 ๐Ÿ‘ 0 ๐Ÿ” 1 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
New article in GIQ on Digital Transformation Leadership, see https://www.sciencedirect.com/science/article/pii/S0740624X25000851

New article in GIQ on Digital Transformation Leadership, see https://www.sciencedirect.com/science/article/pii/S0740624X25000851

๐Ÿ“ฃ New article in Government Information Quarterly ๐Ÿ“ฃ

OPEN ACCESS.

Governments try to adopt new digital technologies.

However, there was no reliable way to measure how public leaders are directing such transformations.

We therefore validated a Digital Transformation Leadership scale.

25.11.2025 09:48 ๐Ÿ‘ 2 ๐Ÿ” 2 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

AI paper against AI reviewer. ๐Ÿ˜Ž

19.11.2025 14:41 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Reflecting on Null Results
What I have been learning and doing with null results over the past year

Reflecting on Null Results What I have been learning and doing with null results over the past year

open.substack.com/pub/nathanfa...

17.11.2025 13:42 ๐Ÿ‘ 3 ๐Ÿ” 3 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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<em>Public Administration Review</em> | ASPA Journal | Wiley Online Library What views do people have of public sector workers? Public sector workers are often portrayed negatively. It is unclear, however, to what extent such negative perceptions are shared among different ...

Great reflection. We also had some null results published in PAR. Great that such top journals are open to it!

onlinelibrary.wiley.com/doi/full/10....

17.11.2025 14:02 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Important paper:

โ€œwe uncover an asymmetric bias: for the same protest actions, overall support levels in the population are higher for environment-critical protesters than for pro-environment protesters.โ€œ

โ€œThis asymmetric bias is [โ€ฆ] especially pronounced among right-leaning individualsโ€

17.11.2025 12:18 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0