Pierce O’Reilly
pierceoreilly.bsky.social
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
Such important work and important for anyone to know who cares about Ireland's future.
1/9 The Fiscal Council's latest report looks at the prospects for the Irish economy and public finances. It points to an increased reliance on corporation tax, future budgetary pressures and a lack of long-term planning.
November 26, 2025 at 12:04 PM
OECD Corporate Tax Statistics is out today. A thread of some key – and I think pretty striking – findings coming out of the data.

www.oecd.org/en/about/new...
Corporate tax revenues rise as global corporate tax rates continue to stabilise, new OECD data show
Corporate tax revenues have increased while statutory corporate tax rates have remained stable, according to new OECD data released today.
www.oecd.org
November 25, 2025 at 9:22 PM
Reposted by Pierce O’Reilly
This is incredible reporting from the ICIJ and a clear sign that both the regulators and the big blockchain analytics firms have clearly dropped the ball
November 21, 2025 at 5:44 PM
Reposted by Pierce O’Reilly
🚨New Working Paper!🚨

@ihsaanbassier.bsky.social & I start with simple stylised fact: lower productivity firms pay ~minimum wage, even as productivity increases.

What does this mean for rent sharing/passthrough? Employment? Profits?

Monopsony model + 🇿🇦 admin data = striking conclusions!
November 21, 2025 at 1:56 PM
Reposted by Pierce O’Reilly
A life of wisdom, and the lessons learned along the way - former Irish diplomat, Noel Dorr: ‘To understand the Troubles, you must go back much further’

www.irishtimes.com/life-style/p...
Noel Dorr: ‘To understand the Troubles, you must go back much further’
Forty years after the Anglo-Irish Agreement, the former diplomat still sees Sunningdale as the peace deal that got way
www.irishtimes.com
November 17, 2025 at 10:12 AM
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
November 10, 2025 at 12:28 PM
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/...
Tax Compliance of Multinationals and Industry Concentration in the European Union - Eutax
www.taxobservatory.eu
November 7, 2025 at 9:39 AM
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
October 30, 2025 at 1:15 PM
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.
October 22, 2025 at 8:32 AM
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
October 20, 2025 at 8:08 AM
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
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...
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
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/
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
Reposted by Pierce O’Reilly
Seriously, this is amazing.
October 8, 2025 at 4:37 AM
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
October 4, 2025 at 3:46 PM
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...
October 5, 2025 at 3:24 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...
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
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
Reposted by Pierce O’Reilly
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
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
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.
September 4, 2025 at 9:28 AM
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
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
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...
September 3, 2025 at 9:53 AM