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Gabriel Kreindler

@thetahat

Economist interested in urban transportation in developing countries. Economics Department, Harvard University https://sites.google.com/site/gabrielkreindler

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27.10.2024
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Latest posts by Gabriel Kreindler @thetahat

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The hubris 🀬

Harvard has determined Summers is unfit to teach its students…

...SO Summers concludes he shouldl now spend all his time advising the world on public policy

www.thecrimson.com/article/2026...

27.02.2026 15:02 πŸ‘ 39 πŸ” 5 πŸ’¬ 4 πŸ“Œ 0
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New NBER paper finds that US crash deaths rise by ~15% on dates of major album releases.

Distraction from smartphones is a likely culprit.

www.nber.org/papers/w34866

26.02.2026 18:53 πŸ‘ 30 πŸ” 9 πŸ’¬ 4 πŸ“Œ 1
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🌟 New @novafrica.bsky.social Working Paper!

"From Destination to Origin: Experimental Evidence on the International Spillovers of Migrant Integration"

By @catiabatista.bsky.social #NovaSBE #LaraBohnet #NYU @gazeaud.bsky.social #CNRS & @juliaseither.bsky.social #UofC

πŸ”— tinyurl.com/627brza4

26.02.2026 19:06 πŸ‘ 8 πŸ” 3 πŸ’¬ 1 πŸ“Œ 1

"The IDF has also accused Jad of throwing a rock, which, under their rules of engagement, can permit soldiers to use lethal force.

But the footage of the incident shows an IDF soldier dropping an object next to Jad after he was shot, then taking a photograph of it"

26.02.2026 10:35 πŸ‘ 32 πŸ” 25 πŸ’¬ 2 πŸ“Œ 2
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Would anybody like to read one of my long threads about a 2.5bn year old rock, bacteria that could produce oxygen but not consume it, and tank production in wwii

23.02.2026 06:14 πŸ‘ 480 πŸ” 126 πŸ’¬ 20 πŸ“Œ 44

Some useful rules of experimentation:
(1) change one thing at a time, never more
(2) run the edge cases to confirm they work the way you expect
Gets you surprisingly far

23.02.2026 22:57 πŸ‘ 86 πŸ” 5 πŸ’¬ 5 πŸ“Œ 1
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Home - JHU School of Government and Policy Johns Hopkins School of Government and Policy advances governance with research, data-driven analysis, and innovative solutions to today’s challenges.

Deep breath.

I'm honored and excited to join the faculty of America's oldest research university, Johns Hopkins.

I'll start this summer as a full professor, one of the founding faculty at the brand-new School of Government and Policy.

We're building something unique & important, even historic.

23.02.2026 15:23 πŸ‘ 671 πŸ” 49 πŸ’¬ 83 πŸ“Œ 6

Taxing rich people into oblivion is good for democracy. The revenue generated, while not sufficient for our purposes, is just a secondary benefit.

19.02.2026 13:45 πŸ‘ 167 πŸ” 36 πŸ’¬ 8 πŸ“Œ 0
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After my ICE arrest, I learned one crucial way to respond to trauma. We can all take part | RΓΌmeysa Γ–ztΓΌrk I was detained for co-writing a op-ed about Gaza as a student at Tufts. My experience has only made me feel more connected to others facing oppression

😒 "I also had the benefit of years of positive memories and joy, saved and accumulated in my knapsack for hard days. Children often lack some of these tools and supports due to their limited life experience, making them particularly vulnerable."
www.theguardian.com/us-news/ng-i...

18.02.2026 22:06 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Postdoctoral Fellow in Economics of Education in Medford, for Tufts University Exciting opportunity in Medford, for Tufts University as a Postdoctoral Fellow in Economics of...

Postdoc posting: Economics of education at Tufts with my colleague Elizabeth Setren.

main.hercjobs.org/jobs/2203818...

11.02.2026 21:20 πŸ‘ 14 πŸ” 15 πŸ’¬ 1 πŸ“Œ 2

Half a billion dollars to build concentration camps seems like it should be a MAJOR headline.

10.02.2026 17:10 πŸ‘ 44 πŸ” 13 πŸ’¬ 0 πŸ“Œ 0

No one will be able to say they didn't know what was happening.

09.02.2026 14:59 πŸ‘ 45 πŸ” 21 πŸ’¬ 0 πŸ“Œ 1
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In Principle, a Case For More 'Sweatshops' (Published 1997)

Better labor conditions might be the best way to improve livelihoods at scale in poor countries. Paul Krugman said: "A policy of good jobs in principle, but no jobs in practice, might assuage our consciences, [...] but it is no favor to its alleged beneficiaries."
www.nytimes.com/1997/06/22/w...

09.02.2026 14:38 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
04.02.2026 21:40 πŸ‘ 4 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

makes your blood boil to read this and the full article.

01.02.2026 20:56 πŸ‘ 5 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0

Hey JMCs, I know the waiting can be stressful.
Good news: @billingsecon.bsky.social, @schnepel.bsky.social, & I are hiring a postdoc on our project funded by Arnold VentureS
πŸ“’ Apply here: jobs.colorado.edu/jobs/JobDetail…
#EconSky πŸ“ˆπŸ“‰

28.01.2026 18:44 πŸ‘ 10 πŸ” 7 πŸ’¬ 2 πŸ“Œ 1
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I am currently on my way to another hearing regarding my federal charges for protesting ICE.

When I say our leaders must be willing to put everything on the line, I mean it.

And frankly, I see it as the bare minimum in this moment.

28.01.2026 16:09 πŸ‘ 10975 πŸ” 2577 πŸ’¬ 251 πŸ“Œ 119

I've been thinking about this lately, and how the standard for what's "normal" is changing. What is happening is so, so far from normal.

27.01.2026 09:12 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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We're hiring a research associate and a research intern for a field project on taxation in the Democratic Republic of Congo. This is a great opportunity for anyone interested in gaining hands-on research and work experience in a low-income country in partnership with the local government.

26.01.2026 13:43 πŸ‘ 21 πŸ” 11 πŸ’¬ 1 πŸ“Œ 1

"Confronted with a list like this β€” a deluge like this β€” we look for details that might explain why these people were subjected to this treatment, details that might reassure us that we, by contrast, are not in danger.
[...]
There is a logic, and this logic has a name. It’s called state terror."

25.01.2026 08:54 πŸ‘ 8 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

This is β€œit” happening here. Right now.

25.01.2026 01:45 πŸ‘ 54 πŸ” 13 πŸ’¬ 1 πŸ“Œ 0
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Immigrant Rapid Response Fund Your gift supports the immediate need for rights and resources in all targeted immigrant communities.

www.wfmn.org/funds/immigr...

24.01.2026 14:29 πŸ‘ 0 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

Reading this powerful witness piece by RΓΌmeysa Γ–ztΓΌrk and seeing the brutality every day reminded me. This regime does these cruel things to appear strong, but they only are if people and institutions don't stand up. This regime is unpopular.

23.01.2026 22:37 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
"I am Puerto Rican," she says. "I send my kids with their passports to school. I'm having conversations with them about safety: Am I safe at school? A week ago we had an incident where there was a school bus with the STOP sign open and kids were getting on the bus and it was surrounded by ICE agents. And this is 7:20 in the morning and - just - you get that fight-or-flight response." At first her 9-year-old was carrying her passport in her backpack; now it's in her back pocket. "I have to prepare them for it if they get stopped," she says. "I said, Do not engage. This is not the time to be cussing at anyone. But she said, Mom, if I create enough noise, my friends can get away."

"I am Puerto Rican," she says. "I send my kids with their passports to school. I'm having conversations with them about safety: Am I safe at school? A week ago we had an incident where there was a school bus with the STOP sign open and kids were getting on the bus and it was surrounded by ICE agents. And this is 7:20 in the morning and - just - you get that fight-or-flight response." At first her 9-year-old was carrying her passport in her backpack; now it's in her back pocket. "I have to prepare them for it if they get stopped," she says. "I said, Do not engage. This is not the time to be cussing at anyone. But she said, Mom, if I create enough noise, my friends can get away."

Our kids

nymag.com/intelligence...

23.01.2026 19:21 πŸ‘ 2123 πŸ” 586 πŸ’¬ 38 πŸ“Œ 69

Once this is all over, there just has to be accountability for this kind of thing. It will be impossible to have a healthy country without that.

22.01.2026 00:34 πŸ‘ 118 πŸ” 30 πŸ’¬ 2 πŸ“Œ 1
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Striking new work on how gangs shape economic development in El Salvador, Melnikov et al. in Econometrica

Stunted development in gang-controlled territory driven by labor mobility limits: harder to commute/work outside territory, smaller labor mkt, less specialization β€”>

doi.org/10.3982/ECTA...

16.01.2026 11:45 πŸ‘ 45 πŸ” 14 πŸ’¬ 1 πŸ“Œ 1
A screenshot of an illustrated book saying: "Would you rather... jump into nettles for five dollars, ... swallow a dead frog for twenty dollars, or stay all night in a creepy house for fifty dollars?"

A screenshot of an illustrated book saying: "Would you rather... jump into nettles for five dollars, ... swallow a dead frog for twenty dollars, or stay all night in a creepy house for fifty dollars?"

Nobody:

Economists using stated preferences:

15.01.2026 20:58 πŸ‘ 23 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0
Florence the Ambulance and Ross the Race Car - Real City Heroes (RCH) | Videos for Children
Florence the Ambulance and Ross the Race Car - Real City Heroes (RCH) | Videos for Children YouTube video by coilbookβ„’ | Learning For Children

what fresh hell. toddler cartoons with an ambulance whose job is to fix *cars*

pretty much sums up how US transport policy weights human life vs vehicles

www.youtube.com/watch?v=JSsT...

21.12.2025 19:03 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

"An April report by an internal Harvard task force on antisemitism called for greater supervision of the FXB Center and Palestine Program by tenured or tenure-track faculty"
Baccarelli: nah, let's destroy the entire center instead (he changed the "focus" of the whole center)

12.12.2025 11:14 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Public Health Faculty Slam Harvard’s Removal of FXB Center Director Mary Bassett | News | The Harvard Crimson More than 400 Harvard affiliates signed a petition to reinstate the director of the FranΓ§ois-Xavier Bagnoud Center for Health and Human Rights in a withering rebuke of the University’s decision to dis...

Harvard's steps to functionally dismantle the current FXB is another fold. There is no doubt, this happened because of its work on human rights and its work on Palestine, and pressure from Trump. What is the message this sends? This makes me feel ashamed.
www.thecrimson.com/article/2025...

12.12.2025 11:14 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0