Housing, cities, history. Often at the same time. Professor @tcdeconomics, Co-Director @ceph_ie. Author of Brittle, out October 1st. Dad of 3, husband of 1.

Dublin, Ireland
Joined December 2008
Thanks Aidan!
Ireland’s housing crisis in one graph. Sobering and depressing. From @ronanlyons great new book, Brittle.
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Ronan Lyons retweeted
Ireland’s housing crisis in one graph. Sobering and depressing. From @ronanlyons great new book, Brittle.
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Ronan Lyons retweeted
Podcast time. Here's the first of a three part series on housing. 1. where the irish housing crisis is now, 2. how did we get here and 3. how do we fix it with the brilliant @ronanlyons Hope you enjoy it. podcasts.apple.com/us/podcas…
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Ronan Lyons retweeted
My online course, The Economics of the Property Market, is back! Registration now live for March 2 start. Across 4 sessions, you'll learn about the core economics needed, supply and demand for housing & the principles for good policy. More here... tcd.ie/economics/programmes/…
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Nearly 800 new homes to be delivered in Dublin 3! lda.ie/news/lda-to-deliver-n…
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My online course, The Economics of the Property Market, is back! Registration now live for March 2 start. Across 4 sessions, you'll learn about the core economics needed, supply and demand for housing & the principles for good policy. More here... tcd.ie/economics/programmes/…
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Ronan Lyons retweeted
These are 10 of my favourite #UrbanEconomics & #SpatialEconomics articles published in academic journals in 2025, continuing with a tradition started in 2018 (order is alphabetical by first author, no ranking implied):
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Interesting correlation between the top five in the safety rankings and top five in the migration rankings! (I'd say "don't tell the anti-migration brigade" but I suspect they're happily immune from facts on this anyway.)
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And amazingly (to Irish eyes), not held up because of an Environmental Impact Assessment...
Coolest underground station in the world? Rome has just opened the new Line C station “Colosseo”, under Fori Imperiali and Altare della Patria. It looks like a museum. 🇮🇹
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Third legal challenge against 402 apartments in Dublin. The practical impact of repeated legal challenges is to make construction on these sites commercially unviable. Many developers can't service debts on stalled sites indefinitely & sell them off. irishtimes.com/crime-law/cou…
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In no way representative, I know, but out of curiosity, would you support a congestion charge if introduced between the canals in Dublin? (Just in principle here - obviously yes, lots of details to be worked out.)
47%Yes (live in Dublin)
22%No (live in Dublin)
21%Yes (not in Dublin)
10%No (not in Dublin)
388 votes • Final results
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If you're interested in a PhD in Economics at Trinity, worth noting the deadlines for funding below.
Our PhD programme is now taken applications for its Sept 2026 intake! 🚨 The deadline for funding consideration is 15th January 2026 🚨 Past students have found their first appointment in institutions like @PSEinfo, @ESRIDublin, @centralbank_ie and many more!
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As recently as yesterday, a "hot take" doing the rounds was arguing that @collision was crazy and there's nothing wrong with Ireland's ability to do stuff. And when this is (finally) built, those living near the terminus will likely see the biggest upswing in their home value.
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There is no version of the present or future where 30,000 homes per year in Ireland is 'a lot' or even 'enough'. Not even if you cut migration to the country to zero and starved basic services of the people they need to stay running.
Ireland is genuinely building a lot of homes right now - 30k per annum However; population growth is so out of control we need to build about 70k which is the same as the Netherlands- a country 4x our size……
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For those more graphically minded and/or in need of more data to back that statement up - even with zero migration, the completion rate should be something like 2.5%-3%.
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After a gap of nearly a decade (surely not!), I'm back at @kilkenomics this weekend. And thrilled to be sharing the stage with both @Noahpinion on 'After Globalisation' and @peterfrankopan on 'The New Silk Roads'... Hope to see you there! kilkenomics.com/pages/ronan-…
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My theory that the 536 volcanic winter made the modern world continues to gather pace... (Without 536, plausibly no Islam and no Vikings/Normans!)
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