Ronald Coase School Professor LSE & MIT Digital Fellow IDE. POID Director. OBE & FBA.Jansson Award winner. ex-Chair of UK CEA
London
Joined August 2009
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My new book with @ufukakcigit on innovation available at My new book with @ufukakcigit on innovation available at amazon.co.uk/Economics-Creat… and all good bookshops near you! and all good bookshops near you!
IMF WEO has a lot of positive things to say on UK relative economic and fiscal position imf.org/en/publications/weo/… Much more so than the last one! torstenbell.substack.com/p/g… @TorstenBell
John Van Reenen retweeted
Read the latest #POIDWorkingPaper: Measuring the prevalence and direction of Innovation: A pilot approach using LLMs
By @Prashant_Garg_, @pj_lambert, Ralf Martin and Denis Medvedev
poid.lse.ac.uk/_new/publicat…
John Van Reenen retweeted
Read the latest #POIDWorkingPaper: A theory of endogenous degrowth and environmental sustainability
By @Ph_Aghion, Timo Boppart, Michael Peters, @SchwartzmanEcon and Fabrizio Zilibotti
poid.lse.ac.uk/_new/publicat…
John Van Reenen retweeted
🗓️ #LSEEnvironmentWeek: Join the discussion on how innovation can accelerate the transition to a cleaner, secure and sustainable energy future w/@asvalero @sinha_praveer @johnvanreenen Thu 24 Sept, 18:30, Old Theatre #LSEEvents
Register 👉: ow.ly/XTl050ZPEiu
John Van Reenen retweeted
Innovation is changing how we generate, store and use energy. Clean energy needs more than new technology. What will it take to scale innovation and deliver a sustainable energy system? Join Anna Valero, Praveer Sinha (@TataPower) and @johnvanreenen
lse.ac.uk/events/innovation-…
Example of a ‘Lost Marie Curie’? She Popularized Economics. Then She Was Erased From History. Why? nytimes.com/2026/08/29/busin… mitsloan.mit.edu/ideas-made-…
John Van Reenen retweeted
An important paper by Agnes Norris Keiller, Aureo de Palma @PaulaAureo, and John Van Reenen @johnvanreenen. The use of firm beliefs about future inputs and outputs represents a new route to identification under weaker assumptions than have been required in previous research. The excellent associated thread gives details.
If this seems interesting to you, check the paper(s)! 👇 9/9
LINK TO PAPER: arxiv.org/abs/2407.07988
LINK TO COMPANION NOTE: shorturl.at/IY3km
LINK TO NOTEBOOKLM PODCAST: shorturl.at/GL5PN
Labour share continues to fall in US ft.com/content/6f3ada65-c56c… Goes alongside rise of superstar firms academic.oup.com/qje/article… This is not happening everywhere, though: in UK productivity & wages continue to move together johnvanreenen.com/_files/ugd…
Good @resfoundation report on UK productivity rebound (spoiler: it's not due to tax rises ) theguardian.com/business/202… Consistent with our @POID_LSE analysis - update here
cep.lse.ac.uk/pubs/download/…
John Van Reenen retweeted
Interesting new initative led by Mario Draghi, @patrickc (CEO of @stripe) and @lugaricano.
With an excellent group of names including Nobel Price @Ph_Aghion, Andreu Mas-Colell @_alice_evans, @alexandraroulet, @bastinominacher, @bweder, @BCoeure, @BrunoLeMaire, @johnvanreenen, @matthewclifford, etc
rhinegroup.eu/
John Van Reenen retweeted
The Equilibrium Impact of Credit Frictions: Evidence from Default Risk Using Firm-Level Data l Tim Besley, @pj_lambert , Isabelle Michalski-Roland & @johnvanreenen write for @nberpubs
nber.org/papers/w35552
This is strong planning reform from Labour government to give default ‘yes’ to housing around commuter rail stations. Builds on our planning reforms in Dec 2024 that OBR scored to raise GDP by >£100bn.
economist.com/britain/2026/0…
By popular demand, here's the updated UK productivity numbers incorporating @ONS data through 2026Q2 released this week. Very similar to our last report cep.lse.ac.uk/pubs/download/… @asvalero @Sam1Fleming ft.com/content/6c358cee-d7ec…
John Van Reenen retweeted
How can the UK get back to stronger #productivity growth?
In his #RES2026 keynote, Prof. @johnvanreenen OBE explored how innovation policy can support growth, from industrial strategy and defence R&D to inequality and AI.
Read more: bit.ly/4xNVeZH
#EconTwitter
People finally accepting that UK showing productivity improvement - me in @FT
ft.com/content/6c358cee-d7ec…
@poid_lse Underlying research poid.lse.ac.uk/PUBLICATIONS/…
Our policies of stable fiscal framework, investment boost, planning reform helping blogs.lse.ac.uk/politicsandp…
John Van Reenen retweeted
At least partially AI-driven, says my colleague @johnvanreenen .
And @andrewishart (who used to be my student ages ago) suggest that it's tech-driven.
We are so back.
UK finally showing signs of productivity boost, say economists giftarticle.ft.com/giftartic… via @financialtimes
New @ONS numbers confirms that UK productivity growth recovery continues (need to use reliable admin RTI data not LFS): ons.gov.uk/employmentandlabo… Consistent with our findings on data through 2026Q1
theguardian.com/business/202…
@poid_lse Details:
cep.lse.ac.uk/pubs/download/…
John Van Reenen retweeted
📢 Agnes Norris Keiller, @johnvanreenen and I have recently issued a revision for our on "Production Function Estimation Using Subjective Expectations Data”! Here comes a (very) short 🧵 on what we do in the paper… 1/9
John Van Reenen retweeted
The @cepr_org Vox Talks have 3 interesting episodes in which @timsvengali discusses the macroeconomic effects of scaling up #defense spending with @Ch_Trebesch @MSchularick and @johnvanreenen, covering the risk that higher military spending crowds out social spending, how to make defense spending more pro-growth, and R&D spillovers to the civilian sectors.
Links in the next tweet
This is an important structural reform to planning rules to help unlock more housing. theguardian.com/politics/202…
