Pierce O’Reilly
@pierceoreilly.bsky.social
Economist. Irish. Head of the Business and International Taxes Unit, Tax Policy Division, OECD. Views own, etc. Reposts are bookmarks
Reposted by Pierce O’Reilly
GOP's One Big Beautiful Bill tax law will increase U.S. debt-to-GDP ratio from 154% three decades after without it to 183% with it, per Auerbach & @billgale.bsky.social.
www.nber.org/papers/w34455
www.nber.org/papers/w34455
November 10, 2025 at 12:28 PM
GOP's One Big Beautiful Bill tax law will increase U.S. debt-to-GDP ratio from 154% three decades after without it to 183% with it, per Auerbach & @billgale.bsky.social.
www.nber.org/papers/w34455
www.nber.org/papers/w34455
Reposted by Pierce O’Reilly
Really interesting by @matejbajgar.bsky.social et al. Tax transparency rules linked to (somewhat) changing levels of market dominance of large firms. Via @taxobservatory.bsky.social
The findings show that tax policy isn’t just about revenue. It also shapes competition & fairness in the marketplace.
Curbing profit-shifting can level the playing field between large multinationals & smaller firms.
📄 For more insights read the full WP: www.taxobservatory.eu/publication/...
Curbing profit-shifting can level the playing field between large multinationals & smaller firms.
📄 For more insights read the full WP: www.taxobservatory.eu/publication/...
Tax Compliance of Multinationals and Industry Concentration in the European Union - Eutax
www.taxobservatory.eu
November 7, 2025 at 9:39 AM
Really interesting by @matejbajgar.bsky.social et al. Tax transparency rules linked to (somewhat) changing levels of market dominance of large firms. Via @taxobservatory.bsky.social
Reposted by Pierce O’Reilly
🚨New publication with Kristijan Kotarski:
Enduring Structural Power? Assessing the Dominance of the Anglosphere in Global Finance Before the Trump Turn
Includes novel visualizations of global finance (banking, portfolio inv & FDI) showing persistent US centrality
hrcak.srce.hr/clanak/487488
Enduring Structural Power? Assessing the Dominance of the Anglosphere in Global Finance Before the Trump Turn
Includes novel visualizations of global finance (banking, portfolio inv & FDI) showing persistent US centrality
hrcak.srce.hr/clanak/487488
October 30, 2025 at 1:15 PM
🚨New publication with Kristijan Kotarski:
Enduring Structural Power? Assessing the Dominance of the Anglosphere in Global Finance Before the Trump Turn
Includes novel visualizations of global finance (banking, portfolio inv & FDI) showing persistent US centrality
hrcak.srce.hr/clanak/487488
Enduring Structural Power? Assessing the Dominance of the Anglosphere in Global Finance Before the Trump Turn
Includes novel visualizations of global finance (banking, portfolio inv & FDI) showing persistent US centrality
hrcak.srce.hr/clanak/487488
Reposted by Pierce O’Reilly
People who have come to the United Kingdom legally, played by the rules and made it their home do not need to “go home”. This is their home.
I've written to Kemi Badenoch to give her the chance to reject these divisive calls from her frontbencher Katie Lam.
I've written to Kemi Badenoch to give her the chance to reject these divisive calls from her frontbencher Katie Lam.
October 22, 2025 at 8:32 AM
People who have come to the United Kingdom legally, played by the rules and made it their home do not need to “go home”. This is their home.
I've written to Kemi Badenoch to give her the chance to reject these divisive calls from her frontbencher Katie Lam.
I've written to Kemi Badenoch to give her the chance to reject these divisive calls from her frontbencher Katie Lam.
Reposted by Pierce O’Reilly
@kclausing.bsky.social and Maurice Obstfeld evaluate #tariffs as a broad tool of fiscal policy and conclude that, combined with the large income tax cuts, Trump’s tariffs will leave most Americans worse off.
cepr.org/voxeu/column...
#EconSky
cepr.org/voxeu/column...
#EconSky
October 20, 2025 at 8:08 AM
@kclausing.bsky.social and Maurice Obstfeld evaluate #tariffs as a broad tool of fiscal policy and conclude that, combined with the large income tax cuts, Trump’s tariffs will leave most Americans worse off.
cepr.org/voxeu/column...
#EconSky
cepr.org/voxeu/column...
#EconSky
Reposted by Pierce O’Reilly
Proud papa moment: my son J published a letter in the @nytimes.com today (in print tomorrow) on the need to think our definitions of autism.
October 18, 2025 at 8:06 PM
Proud papa moment: my son J published a letter in the @nytimes.com today (in print tomorrow) on the need to think our definitions of autism.
Reposted by Pierce O’Reilly
We are awarding our President's Medal to 'In Our Time' as it has done so much to showcase humanities & social sciences. We'd decided this before the news of Melvyn Bragg stepping down, but glad we got our timing right & had a chance to celebrate with him!
www.thebritishacademy.ac.uk/news/renowne...
www.thebritishacademy.ac.uk/news/renowne...
Renowned BBC Radio 4 programme In Our Time receives prestigious British Academy President’s Medal for 2025
The British Academy has awarded its prestigious President’s Medal to the long-running and beloved BBC Radio 4 programme In Our Time. Recognising its outstanding contribution to humanities and social s...
www.thebritishacademy.ac.uk
October 17, 2025 at 8:23 AM
We are awarding our President's Medal to 'In Our Time' as it has done so much to showcase humanities & social sciences. We'd decided this before the news of Melvyn Bragg stepping down, but glad we got our timing right & had a chance to celebrate with him!
www.thebritishacademy.ac.uk/news/renowne...
www.thebritishacademy.ac.uk/news/renowne...
Reposted by Pierce O’Reilly
Three years after my husband died, I’m still trying to prove our life together was worth losing his family.
What I live with isn’t forgetting — it’s the blurring of memory.
On the third anniversary, I wrote about grief, memory, and continuing without answers.
www.dataandpolitics.net/the-blurring/
What I live with isn’t forgetting — it’s the blurring of memory.
On the third anniversary, I wrote about grief, memory, and continuing without answers.
www.dataandpolitics.net/the-blurring/
The Blurring
What I live with isn't forgetting, it's the blurring. A meditation on grief, memory, and continuing without answers three years after loss.
www.dataandpolitics.net
October 15, 2025 at 4:34 PM
Three years after my husband died, I’m still trying to prove our life together was worth losing his family.
What I live with isn’t forgetting — it’s the blurring of memory.
On the third anniversary, I wrote about grief, memory, and continuing without answers.
www.dataandpolitics.net/the-blurring/
What I live with isn’t forgetting — it’s the blurring of memory.
On the third anniversary, I wrote about grief, memory, and continuing without answers.
www.dataandpolitics.net/the-blurring/
Reposted by Pierce O’Reilly
Seriously, this is amazing.
🧠 Alzheimer’s reversed in mice
A new study found that injecting nanoparticles can 'remind' the blood–brain barrier to function properly again, restoring normal brain activity in mice. Human trials could follow within years.
🔗 www.nature.com/articles/s41...
#SciComm #Alzheimers 🧪
A new study found that injecting nanoparticles can 'remind' the blood–brain barrier to function properly again, restoring normal brain activity in mice. Human trials could follow within years.
🔗 www.nature.com/articles/s41...
#SciComm #Alzheimers 🧪
Rapid amyloid-β clearance and cognitive recovery through multivalent modulation of blood–brain barrier transport - Signal Transduction and Targeted Therapy
Signal Transduction and Targeted Therapy - Rapid amyloid-β clearance and cognitive recovery through multivalent modulation of blood–brain barrier transport
www.nature.com
October 8, 2025 at 4:37 AM
Seriously, this is amazing.
Reposted by Pierce O’Reilly
Magnificent peroration to Simon Schama’s @financialtimes.com weekend essay on defending freedom of speech in the era of Trump - with help from Milton, Jefferson et al.
on.ft.com/4gSqvDw Simon Schama: What America’s Founders can teach Trump about liberty
on.ft.com/4gSqvDw Simon Schama: What America’s Founders can teach Trump about liberty
October 4, 2025 at 3:46 PM
Magnificent peroration to Simon Schama’s @financialtimes.com weekend essay on defending freedom of speech in the era of Trump - with help from Milton, Jefferson et al.
on.ft.com/4gSqvDw Simon Schama: What America’s Founders can teach Trump about liberty
on.ft.com/4gSqvDw Simon Schama: What America’s Founders can teach Trump about liberty
Reposted by Pierce O’Reilly
Brutal BBC piece on how fast Switzerland’s glaciers are melting.
Drill baby drill. 🎶🎵
www.bbc.co.uk/news/article...
Drill baby drill. 🎶🎵
www.bbc.co.uk/news/article...
October 5, 2025 at 3:24 PM
Brutal BBC piece on how fast Switzerland’s glaciers are melting.
Drill baby drill. 🎶🎵
www.bbc.co.uk/news/article...
Drill baby drill. 🎶🎵
www.bbc.co.uk/news/article...
This is so important. It is baffling to me there aren't more saying it, and that there isn't more willingness to listen. www.irishtimes.com/business/eco...
John FitzGerald: The economy is red hot. Tax cuts in the budget are the last thing it needs
We hear a lot in the media about a cost-of-living crisis. This is seriously at odds with the facts
www.irishtimes.com
October 6, 2025 at 8:11 PM
This is so important. It is baffling to me there aren't more saying it, and that there isn't more willingness to listen. www.irishtimes.com/business/eco...
Reposted by Pierce O’Reilly
1/4 The Council is today publishing a working paper on “VAT rate pass-through: Evidence form the Irish hospitality and tourism industry” by @killiancarroll.bsky.social. The paper looks at the four most recent changes to the VAT rate on hospitality and tourism.
October 1, 2025 at 7:48 AM
1/4 The Council is today publishing a working paper on “VAT rate pass-through: Evidence form the Irish hospitality and tourism industry” by @killiancarroll.bsky.social. The paper looks at the four most recent changes to the VAT rate on hospitality and tourism.
Reposted by Pierce O’Reilly
This is a direct result of EU's carbon tariffs. www.bloomberg.com/news/article...
India to Spend $570 Million to Help Steel Companies Decarbonize
India plans to roll out a 50 billion rupee ($570 million) program to encourage steel producers to cut emissions, a top government official said.
www.bloomberg.com
September 17, 2025 at 7:36 AM
This is a direct result of EU's carbon tariffs. www.bloomberg.com/news/article...
Reposted by Pierce O’Reilly
I am beyond excited to announce that ggplot2 4.0.0 has just landed on CRAN.
It's not every day we have a new major #ggplot2 release but it is a fitting 18 year birthday present for the package.
Get an overview of the release in this blog post and be on the lookout for more in-depth posts #rstats
It's not every day we have a new major #ggplot2 release but it is a fitting 18 year birthday present for the package.
Get an overview of the release in this blog post and be on the lookout for more in-depth posts #rstats
ggplot2 4.0.0
A new major version of ggplot2 has been released on CRAN. Find out what is new here.
www.tidyverse.org
September 11, 2025 at 11:20 AM
Reposted by Pierce O’Reilly
Highest level of support since Gallup started asking this question a quarter century ago
September 7, 2025 at 7:37 PM
Highest level of support since Gallup started asking this question a quarter century ago
Reposted by Pierce O’Reilly
In Paris for a crucial meeting of the Coalition of the Willing on security guarantees.
We have been working on 3 core tasks.
Turning Ukraine into a steel porcupine.
Building a Multinational Force for Ukraine backed by the US.
Reinforcing Europe’s defence posture.
Let’s now move forward.
We have been working on 3 core tasks.
Turning Ukraine into a steel porcupine.
Building a Multinational Force for Ukraine backed by the US.
Reinforcing Europe’s defence posture.
Let’s now move forward.
September 4, 2025 at 9:28 AM
In Paris for a crucial meeting of the Coalition of the Willing on security guarantees.
We have been working on 3 core tasks.
Turning Ukraine into a steel porcupine.
Building a Multinational Force for Ukraine backed by the US.
Reinforcing Europe’s defence posture.
Let’s now move forward.
We have been working on 3 core tasks.
Turning Ukraine into a steel porcupine.
Building a Multinational Force for Ukraine backed by the US.
Reinforcing Europe’s defence posture.
Let’s now move forward.
Reposted by Pierce O’Reilly
Fascinated that In Our Time is one of the BBC’s most popular podcasts among under 35s. The young people demand three academics and a peer discussing Demosthenes, apparently. And they’re right to do so.
September 3, 2025 at 2:37 PM
Fascinated that In Our Time is one of the BBC’s most popular podcasts among under 35s. The young people demand three academics and a peer discussing Demosthenes, apparently. And they’re right to do so.
Reposted by Pierce O’Reilly
A huge moment -- Melvyn Bragg steps down from In Our Time after over a quarter of a century. What a programme and what a legacy! Just a model for how to make great, clever, engaging radio, and a twenty-seven-year experiment that proves there's a huge global audience for smart, scholarly programming.
Melvyn Bragg decides to step down from presenting In Our Time
After 26 years on the programme, the legendary presenter bids farewell to the series
www.bbc.co.uk
September 3, 2025 at 10:48 AM
A huge moment -- Melvyn Bragg steps down from In Our Time after over a quarter of a century. What a programme and what a legacy! Just a model for how to make great, clever, engaging radio, and a twenty-seven-year experiment that proves there's a huge global audience for smart, scholarly programming.
Reposted by Pierce O’Reilly
🧵 1/ Over 20% of global banking debt is booked in #TaxHavens. Why do international banks rely so heavily on low-tax jurisdictions with tiny economies?
Our latest Working Paper provides the first global evidence of large-scale debt shifting to avoid taxes 👇
www.taxobservatory.eu/es/publicati...
Our latest Working Paper provides the first global evidence of large-scale debt shifting to avoid taxes 👇
www.taxobservatory.eu/es/publicati...
September 3, 2025 at 9:53 AM
🧵 1/ Over 20% of global banking debt is booked in #TaxHavens. Why do international banks rely so heavily on low-tax jurisdictions with tiny economies?
Our latest Working Paper provides the first global evidence of large-scale debt shifting to avoid taxes 👇
www.taxobservatory.eu/es/publicati...
Our latest Working Paper provides the first global evidence of large-scale debt shifting to avoid taxes 👇
www.taxobservatory.eu/es/publicati...
Reposted by Pierce O’Reilly
The SOUTHMOD bundle is here! Governments & researchers can now test reforms before implementation for better policy design.
What’s new?
✅ Revamped Statistics Presenter
✅ Visualizations on poverty & inequality
✅ Indirect fuel subsidies included
👉 go.unu.edu/ijINF
What’s new?
✅ Revamped Statistics Presenter
✅ Visualizations on poverty & inequality
✅ Indirect fuel subsidies included
👉 go.unu.edu/ijINF
September 2, 2025 at 12:20 PM
The SOUTHMOD bundle is here! Governments & researchers can now test reforms before implementation for better policy design.
What’s new?
✅ Revamped Statistics Presenter
✅ Visualizations on poverty & inequality
✅ Indirect fuel subsidies included
👉 go.unu.edu/ijINF
What’s new?
✅ Revamped Statistics Presenter
✅ Visualizations on poverty & inequality
✅ Indirect fuel subsidies included
👉 go.unu.edu/ijINF
Reposted by Pierce O’Reilly
The water level in the Vistula, Poland's longest river, has fallen to a new record low of just 5cm in Warsaw amid continued hot, dry weather.
For more on the situation, see our report from last week: bit.ly/42bQ1xo.
For more on the situation, see our report from last week: bit.ly/42bQ1xo.
Wisła z nowym rekordem. Zaledwie 5 cm stanu wody
Wody w Wiśle w Warszawie jest tak niewiele, że padają kolejne rekordy. We wtorek nad ranem pomiar stanu wody w rejonie Bulwarów Wiślanych pokazał jedynie
zielona.interia.pl
September 2, 2025 at 8:31 AM
The water level in the Vistula, Poland's longest river, has fallen to a new record low of just 5cm in Warsaw amid continued hot, dry weather.
For more on the situation, see our report from last week: bit.ly/42bQ1xo.
For more on the situation, see our report from last week: bit.ly/42bQ1xo.
Reposted by Pierce O’Reilly
Some students and people around me are skeptical, apathetic, or simply indifferent to climate change. Lately, I’ve found myself rattling them by saying: “You know, all of this 👇🏾 will mean more unpredictable and intense turbulence that will make travel much harder and at some point impossible.”
Collapse of critical Atlantic current is no longer low-likelihood, study finds
Scientists say ‘shocking’ discovery shows rapid cuts in carbon emissions are needed to avoid catastrophic fallout
www.theguardian.com
August 28, 2025 at 8:22 PM
Some students and people around me are skeptical, apathetic, or simply indifferent to climate change. Lately, I’ve found myself rattling them by saying: “You know, all of this 👇🏾 will mean more unpredictable and intense turbulence that will make travel much harder and at some point impossible.”
Reposted by Pierce O’Reilly
“Scientists have warned previously that Amoc collapse must be avoided “at all costs”. It would shift the tropical rainfall belt on which many millions of people rely to grow their food, plunge western Europe into extreme cold winters and summer droughts, and add 50cm to already rising sea levels”
Collapse of critical Atlantic current is no longer low likelihood, study finds
- Scientists say ‘shocking’ discovery shows rapid cuts in carbon emissions are needed to avoid catastrophic impacts
#climatecrisis #AMOC
www.theguardian.com/environment/...
- Scientists say ‘shocking’ discovery shows rapid cuts in carbon emissions are needed to avoid catastrophic impacts
#climatecrisis #AMOC
www.theguardian.com/environment/...
Collapse of critical Atlantic current is no longer low likelihood, study finds
Scientists say ‘shocking’ discovery shows rapid cuts in carbon emissions are needed to avoid catastrophic fallout
www.theguardian.com
August 28, 2025 at 7:56 PM
“Scientists have warned previously that Amoc collapse must be avoided “at all costs”. It would shift the tropical rainfall belt on which many millions of people rely to grow their food, plunge western Europe into extreme cold winters and summer droughts, and add 50cm to already rising sea levels”
Reposted by Pierce O’Reilly
NEW DATA | In the 12 months to June, 53% of New Mexico’s electricity came from wind and solar power ☀️
20 years ago, fossil fuels made up 98%.
10 years ago, still 91%…
12 months to June 2025? Just 46% 🤯
Electricity transition made in 🇺🇸, powered by ☀️ and 🍃
20 years ago, fossil fuels made up 98%.
10 years ago, still 91%…
12 months to June 2025? Just 46% 🤯
Electricity transition made in 🇺🇸, powered by ☀️ and 🍃
August 28, 2025 at 7:04 PM
NEW DATA | In the 12 months to June, 53% of New Mexico’s electricity came from wind and solar power ☀️
20 years ago, fossil fuels made up 98%.
10 years ago, still 91%…
12 months to June 2025? Just 46% 🤯
Electricity transition made in 🇺🇸, powered by ☀️ and 🍃
20 years ago, fossil fuels made up 98%.
10 years ago, still 91%…
12 months to June 2025? Just 46% 🤯
Electricity transition made in 🇺🇸, powered by ☀️ and 🍃