CEPR & @wipo.int present the online report launch: Where Music Meets Finance: From Music Rights to Alternative Investment
03.03.2026 @ 16h CET | Zoom
W/ @tomvalletti.bsky.social, @cpeukert.bsky.social, Dennis Collopy, Martin Kretschmer, Audu Maikori, & Carsten Fink
cepr.org/events/where...
#EconSky
17.02.2026 13:42
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The innovation theory of harm in merger control: Some clarifications
Recent literature has analyzed the unilateral effects of mergers on investment and innovation. This note explores the Innovation Theory of Harm from aβ¦
Once properly interpreted, econ theory overwhelmingly supports the ITOH.
π Without synergies/spillovers, mergers harm consumers.
So: weakening merger control in the name of innovation is misguided.
The economics is clear β the ITOH still stands.
π Article www.sciencedirect.com/science/arti...
18.08.2025 11:36
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My paper revisits the Innovation Theory of Harm (ITOH): mergers can reduce firmsβ incentives to invest & innovate.
This theory has shaped major EU merger cases in telecoms & agro-chemicals.
What I find:
18.08.2025 11:31
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π¨ New paper in Economics Letters!
Do mergers boost or harm innovation? The debate is heating up in EU & UK policy circles.
Some argue:
Relax merger control β more investment, productivity, competitiveness.
This view has influenced reports like Draghiβs & UK govβt policy.
But is it right? π€
18.08.2025 11:31
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Centre for Competition Policy
High quality independent research into competition policy and regulation
Call for papers, 4th UK Workshop on Digital Economics, London 28 November 2025: competitionpolicy.ac.uk/events/4th-w... This is always a great event
25.07.2025 09:43
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π¨Free data alert!! π¨ Please share.
Large new dataset of Amazon product reviews, including full text and photos and product characteristics, with individual *reviews labeled as fake reviews*.
I believe this is the first publicly available data of this kind.
github.com/bretthollenb...
11.07.2025 21:17
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Findings: Ex post actions against consummated mergers exist but do not have a good record of success.
Implications: postmerger policy ineffectiveness needs a more stringent ex ante policy in order to achieve the right balance.
Link to the pre-print:
papers.ssrn.com/sol3/papers....
Ciao
2/2
01.07.2025 15:41
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New paper just accepted in the Antitrust Law Journal written with John Kwoka.
We study the policy toward consummated mergers that prove to be anticompetitive, both in theoretical and empirical terms.
1/2
01.07.2025 15:41
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βJoin us online for a high-level debate on merger control in Europe
Featuring E Tarantino, S Athey, @janeeckhout.bsky.social, P Heidhues, F Ederer, @tomasoduso.bsky.social
Moderator: @cristinacaffarra.bsky.social
14 July @ 17:00 CEST
cepr.org/events/updat...
@tomvalletti.bsky.social
16.06.2025 12:29
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Iβve written this piece in The Times.
Competition should work for the many, not the few.
15.05.2025 08:39
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Video of this remarkable webinar now available online:
www.youtube.com/watch?v=v7e5...
16.04.2025 08:05
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Designing βBuy Europeanβ Policies for European Strategic Autonomy - 15 Apr @ 17:00 CEST
π£οΈ@snoep.bsky.social, D Harhoff, U Akcigit, G Spagnolo, B Baltzan, @schularick.bsky.social
@sandertordoir.bsky.social @tomvalletti.bsky.social @cristinacaffarra.bsky.social
cepr.org/events/desig...
#EconSky
28.03.2025 09:58
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We also find that employment increased, and used LLM to look at Google reviews & ratings about bookshops.
Readers appreciate discovery, suggestions & events organized by bookshops. This is in line with the βservice effortβ mechanism in settings where otherwise there would be free-riding. 5/
21.03.2025 10:39
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Not really. We also find that the *variety* of books purchased by readers went up. Books that had a near-zero market share before FBP... started being purchased afterwards.
So there is a possible trade-off! 4/
21.03.2025 10:39
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Indeed, comparing with the same Italian books sold in Switzerland at the time (Italian is an official language there too! And there is no regulation of books in CH), final prices to readers went up, especially among independent bookshops that are very common in ITA.
End of the story? 3/
21.03.2025 10:39
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A regulation (FBP) was introduced in Italy in 2011 and allowed publishers to set the price of books while bookshops were restrained from discounting them.
This sounds pretty bad for readers. 2/
21.03.2025 10:39
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π¨ !Paper alert! π¨
Do you like books? Then read our new paper on price and non-price effects of regulation in the market for books! With
@cgenakos.bsky.social, Mario Pagliero & Lorien Sabatino.
Whatβs the paper about? π§΅
21.03.2025 10:39
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Tommaso Valletti: Is Competition Policy Dead? What Is Next? Competition Policy In Turbulent Times
YouTube video by Digital Markets Research Hub
Antitrust "technocrats have failed...and they're defending their job" @tomvalletti.bsky.social youtu.be/e7Unsy3jgbA - not talking about the DMA π
04.03.2025 08:56
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Result:
Large increase in Chinese apps and innovation in China
And also:
Large increase of Chinese apps in *foreign* Asian countries
There is much more in her paper. You can read it here π
dropbox.com/scl/fi/b0i5w...
07.02.2025 15:34
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Very interesting JMP from Jie Zhou (MIT) who's on the job market
So relevant given todayβs discussion in EU on how protect from further digital colonisation while spurring native innovation
Context:
China Great Firewall: China blocked foreign apps and regulated the internet (for political reasons)
07.02.2025 15:34
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Political Power and Market Power
Does market power lead to political power? This longstanding question, raised by Louis Brandeis in 1914, remains strikingly relevant today. As industries ...
Looking at the US presidential inauguration, the link between market power and political power has never been so evident.
If you also found that very striking, please read our blog with Bo Cowgill and Andrea Prat
corpgov.law.harvard.edu/2025/02/06/p...
06.02.2025 15:43
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Well, no. We test that, and find no evidence. Itβs in the paper, worth reading it first perhaps
17.12.2024 12:05
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Incidentally, a minor detail: itβs not what we find
17.12.2024 11:00
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Revised version of our paper with Bo Cowgill and Andrea Prat just out.
We document how mergers in the US are followed by large and persistent increases in lobbying activity. Firms with market power also try to gain political power.
www.nber.org/papers/w33255
17.12.2024 08:00
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Synergies have to be cognizable & merger specific. In telecoms, perhaps they come from spectrum or network sharing: but then there are alternatives that are less anticompetitive than a merger. Plus we have 30 yrs of no evidence of them after mergers. Bottomline: itβs a bad (& unenforceable) remedy.
25.11.2024 10:36
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Sir John Vickers gave a keynote at ACE. His views on the UK Vodafone/Three merger - see the images.
Knowing Sir John, whoβs the epitome of moderation, this is quite some scathing criticism directed to the Competition and Markets Authority proposed flawed approach.
Is there still time to re-think?
25.11.2024 09:50
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I welcome it as a way of addressing structural competition issues. But to be frank its application is probably doomed because of lack of resources among enforcers. So donβt expect much in practice
23.11.2024 17:07
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Congratulations to Guatemala. I am referring to EU and UK, which I know better
23.11.2024 13:43
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