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Matt Collin

@mattcollin

Development economist working at the @taxobservatory.bsky.social‬ in Paris. Illicit finance, tax evasion, and foreign aid. Techno DJ when no one is looking. www.matthewcollin.com https://datadarkly.substack.com/

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Latest posts by Matt Collin @mattcollin

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02.03.2026 20:37 👍 3 🔁 0 💬 0 📌 2
Netanyahu Calls Iran Strikes Necessary To Prevent War He Just Started

Netanyahu Calls Iran Strikes Necessary To Prevent War He Just Started

Netanyahu Calls Iran Strikes Necessary To Prevent War He Just Started

28.02.2026 07:19 👍 23671 🔁 7117 💬 735 📌 406
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🚨 A defining moment for global health data.

The termination of the #USAID-supported Demographic and Health Survey (DHS) Program has wide-ranging consequences. We reflect on the collapse and argue what should come next in a new PNAS: doi.org/10.1073/pnas.2…

📊 9,000+ studies

26.02.2026 14:28 👍 49 🔁 24 💬 2 📌 3

If HMRC isn't interested in punching through opacity in corporate structures to collect all other types of tax that are evaded and avoided, idk if a wealth tax is going to change their minds

25.02.2026 18:06 👍 0 🔁 0 💬 1 📌 0

But I'm not sure how you get your transparency-via-wealth tax without it? Also not clear that the places that do have a wealth tax make corporate structures more transparent to the public, which is the channel through which pressure mounted in the above example

25.02.2026 18:04 👍 0 🔁 0 💬 1 📌 0

If you want to make real estate ownership transparent, you could just do... that. Most real estate in England and Wales owned by corporates is covered under the beneficial ownership register. There are gap which should be plugged - but those gaps don't apply to the tax authority.

25.02.2026 11:29 👍 1 🔁 0 💬 2 📌 0
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a man with a beard and a hat is saying `` i have no memory of this place . '' ALT: a man with a beard and a hat is saying `` i have no memory of this place . ''

Er

25.02.2026 11:25 👍 0 🔁 0 💬 1 📌 0

While I'm sympathetic, I'm curious how you think a wealth tax would have been the thing that made a difference in the above case

25.02.2026 07:40 👍 1 🔁 0 💬 2 📌 0
Yoyaku Instore session Helena Hauff
Yoyaku Instore session Helena Hauff YouTube video by Yoyaku Record Store

Happy Techno Tuesday
www.youtube.com/watch?v=F8Nh...

24.02.2026 13:55 👍 0 🔁 0 💬 0 📌 0

Congrats Michael!

23.02.2026 18:04 👍 1 🔁 1 💬 1 📌 0

@scepticalranil.bsky.social

23.02.2026 12:57 👍 1 🔁 0 💬 0 📌 0

Claude Code went through the original SQL file and cleaned out any malicious code, then went through the Internet Archive's Wayback Machine to retrieve the orignial .jpegs!

It took like 3 hours in total, incredible

23.02.2026 12:56 👍 1 🔁 0 💬 1 📌 0
Home - Aid Thoughts

After years of hand-wringing and fighting with Bluehost's weak Wordpress protection, I finally have resurrected an archived, html version of Aid Thoughts at the original address, with a little help from Claude!

aidthoughts.org

With original comments and images!

23.02.2026 12:56 👍 6 🔁 0 💬 1 📌 1

There are there middle aged men at the table next to me in this cafe all collectively having a voice conversation with Mistral or Chat GPT or something while they have their coffee and croissants what is even happening

20.02.2026 08:59 👍 4 🔁 0 💬 0 📌 0

Self-recommending. @johndellosso.bsky.social is an excellent investigator and this seems like a great way to train the next generation of bright young sleuths

18.02.2026 08:36 👍 4 🔁 2 💬 0 📌 0
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"America will get better and better," declared the Reverend Jesse Jackson on the stage of the 1988 Democratic National Convention. "Keep hope alive."

Find some hope today in Jackson's speech as we remember the life of one of America's civil rights icons.

18.02.2026 02:33 👍 503 🔁 134 💬 13 📌 7
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Investigative Simulations Lab

Today I’m proud to launch the Investigative Simulations Lab (@investigativesimulations.org), an organization that designs and delivers simulation games that show journalists and researchers how to follow the money and uncover wrongdoing.

18.02.2026 05:16 👍 9 🔁 10 💬 1 📌 1
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Crypto and Human Trafficking: 2026 Crypto Crime Report Cryptocurrency flows to suspected human trafficking services surged 85% between 2024 and 2025, reaching a scale of hundreds of millions.

What is never very clear from @chainalysis estimates is whether they are measuring a true intensive margin, or just a measurement extensive margin: in the past year they just got better at detecting human trafficking www.chainalysis.com/blog/crypto-...

13.02.2026 08:47 👍 0 🔁 0 💬 0 📌 0
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Switzerland to vote on far-right proposal to cap population at 10 million Referendum on immigration limit could threaten EU agreements and cripple economy, say Swiss businesses

We'll take your assets, just not your people

www.theguardian.com/world/2026/f...

12.02.2026 07:37 👍 0 🔁 0 💬 0 📌 0

I suspect @ronbdavies.bsky.social is already half way there

09.02.2026 13:55 👍 1 🔁 0 💬 0 📌 0

Looking forward to the Myanmar article! @nmoreaukastler.bsky.social

09.02.2026 11:26 👍 1 🔁 0 💬 0 📌 0

Think your LLM gave this the wrong tag

09.02.2026 10:10 👍 1 🔁 0 💬 1 📌 0

Grumpy opinion:
Too many young development economists are working on behavioral econ questions that are unimportant for development. The topics are amenable to small experiments that can nail mechanisms and demonstrate smarts via a clever design. The profession over-rewards those attributes.

07.12.2025 13:12 👍 94 🔁 12 💬 11 📌 0

We are now the International Tax Observatory!

05.02.2026 13:54 👍 9 🔁 2 💬 0 📌 0
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March for Billionaires — San Francisco, Feb 7 Stand up for the entrepreneurs, innovators, and risk-takers who build our economy. February 7, 2026.

This is actually real: marchforbillionaires.org

02.02.2026 12:37 👍 49 🔁 18 💬 13 📌 7
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How effective are transparency innovations in curbing offshore tax evasion? We’re spending the next two days examining the latest evidence on illicit financial flows.

🎙️ Opening remarks by @gabrielzucman.bsky.social.

Can’t make it? Catch the full recording on our YouTube later this week!

03.02.2026 09:34 👍 18 🔁 9 💬 1 📌 3

Very happy to have had the chance to present our work (w. @mattcollin.bsky.social & @szakonyi.bsky.social) on the effects of the Economic Crime Bill and its beneficial ownership transparency on secretive real estate ownership in the UK.

03.02.2026 18:28 👍 7 🔁 4 💬 0 📌 0

Except when it comes to fiscal exile mania

03.02.2026 07:52 👍 1 🔁 0 💬 1 📌 0
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Revealed: the foreign owners ‘hiding’ £190bn worth of UK property A new investigation uncovers what is likely to be a mass breach of the government’s anti-corruption rules, involving almost 45,000 properties

"The ultimate owners of almost 45,000 UK properties worth an estimated £190 billion are hidden from public view via offshore companies"

New investigation by @thetimes.com / @danneidle.bsky.social uses beneficial ownership data from UK Register of Overseas Entities

www.thetimes.com/life-style/p...

29.01.2026 12:13 👍 8 🔁 5 💬 1 📌 0
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Some next level stuff from Fox News

26.01.2026 13:22 👍 0 🔁 0 💬 0 📌 0