iiinova — where your digital self keeps evolving

Reposted by Florian Ederer

NBER @nber.org · 22/09/2026

Across 1,200 startup acquisitions by eight tech firms, innovation rises before the deal, acquired patents gain citations after it, but 31 percent of target employees leave within a year, from @florianederer.bsky.social, Regina Seibel, and Timothy Simcoe www.nber.org/papers/w35762

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Reposted by Florian Ederer

Tim Bresnahan @timobres.bsky.social · 23/09/2026

Common ownership folks, are you on this? @florianederer.bsky.social @janeeckhout.bsky.social

bsky.app

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Reposted by Florian Ederer

Centre for Economic Policy Research @cepr.org · 18/09/2026

📢 #CallForPapers - 27th CEPR-JIE Conference on Applied Industrial Organization 📆27-28 May 2027 | 📍 @tilburg-university.bsky.social ⌛Deadline: 22 November Organisers: @florianederer.bsky.social, @kleintob.bsky.social, Jeanine Miklós-Thal, & Nicola Pavanini ow.ly/WgWU50ZP5Y3 @erc.europa.eu

The 2027 CEPR-JIE Conference on Applied Industrial Organization will take place in Tilburg, Netherlands, hosted by the Tilburg University, on Thursday 27 and Friday 28 of May 2027.
The Applied IO conference series seeks to contribute to the understanding of the breadth of topics analysed within the field of Industrial Organization, including demand analysis, productivity, competition in the short- and long-run, innovation, investment, and auctions.
The programme will cover a wide range of topics in Industrial Organization. In addition, for this edition of the conference, we will organise a dedicated session on Housing and Mortgages and we welcome submissions on the topic.
Scientific Committee: Florian Ederer (Boston University Questrom School of Business), Tobias Klein (Tilburg University), Jeanin Miklós-Thal (University of Rochester), Nicola Pavanini (Tilburg University).

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Florian Ederer @florianederer.bsky.social · 19/08/2026

I believe that this is the very first time we've heard from Larry Summers since his Epstein files retirement. Is he coming back?

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Florian Ederer @florianederer.bsky.social · 19/08/2026

I did wonder which platform would cater to the demand for mean-spirited attacks on economists now that the market leader has been put out of business, but I didn't expect it to be The Economist.

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Reposted by Florian Ederer

Stephanie Wang @sweiwang.bsky.social · 16/08/2026

🚨Elsevier forces out Games and Economic Behavior (GEB) Editor, entire editorial board has resigned, current board only handling new submissions until Nov. 14 #econsky

Dear Advisory Editor of GEB
We are very sorry to be the bearers of bad news for GEB.
I learned from Elsevier on Wednesday July 28 that, contrary to my expressed willingness to continue, my 3-year contract will not be renewed.
"Moving towards a closer alignment with Elsevier strategic priorities and publishing policies" was offered as the motive for this decision. Requests for explanations, first by me, then in a collective letter by the other six Editors, were dismissed by Elsevier which simply reaffirmed its legal power to make such decisions.
Elsevier then started precipitously its own search for new Editors without input of the Editorial Board.
By Friday August 14 all seven Editors have sent their resignation, requiring a 3-month advance notice.
Therefore, we will continue to manage as before the papers currently under review and the new submissions until Saturday November 14. After this date we will only complete the evaluation of papers still waiting an editorial decision.

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Reposted by Florian Ederer

NBER @nber.org · 09/08/2026

Rival firms linked by common ownership are more likely to form cartels and to sustain them longer. After a cartel dissolves, those ownership ties are reduced, from Vincent Abraham, @florianederer.bsky.social, and Catarina Marvao www.nber.org/papers/w35565

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Reposted by Florian Ederer

Asoziales Netzwerk - Sektion Oberbayern @asozialesnetzwerk.eurosky.social · 12/08/2026

@florianederer.bsky.social Your paper made it into the upcoming hbomberguy video on why "Adobe must die" :D

Paper on "Killer Acquisitions" by Cunningham, Ederer and Ma published in the JPE

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Florian Ederer @florianederer.bsky.social · 03/08/2026

Excited to share a new working paper with Vincent Abraham and Catarina Marvão: Using the population of legal cartels in Sweden, we provide the first empirical evidence that common ownership can facilitate explicit collusion. www.nber.org/papers/w35565

nber.org

Common Ownership and Collusion

Founded in 1920, the NBER is a private, non-profit, non-partisan organization dedicated to conducting economic research and to disseminating research findings among academics, public policy makers, an...

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Florian Ederer @florianederer.bsky.social · 17/07/2026

Delighted to see Lisa Kahn and Isaac Sorkin taking over as co-directors of the NBER Labor Studies Program. Two outstanding economists and thoughtful leaders. Congratulations to both, and especially to Lisa, who has been a wonderful friend and colleague for many years.

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Florian Ederer @florianederer.bsky.social · 30/06/2026

I apologize to my co-authors, but it's a little difficult for me right now to focus on doing my part of the paper revisions.

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Reposted by Florian Ederer

Muriel Niederle @murielniederle.bsky.social · 28/06/2026

Austrian soccer highlights: It used to be: “I wer narrisch,” as of yesterday: “bist. Du. deppart.”

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Florian Ederer @florianederer.bsky.social · 25/06/2026

Nuffield College is selling signed books from Nobel Laureate Sir James Mirrlees's personal collection. True to form, the sales mechanism is a sophisticated auction based on Paul Klemperer's product-mix auction. mirrlees-auction.nuff.ox.ac.uk

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Reposted by Florian Ederer

Ruo Shui @ruoshuiresearch.bsky.social · 23/06/2026

that Messi premium in Miami 🔥

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Reposted by Florian Ederer

Brian Mills @bmmillsy.bsky.social · 23/06/2026

Respectfully here to note there is a 2014 paper from my soccer-obsessed friends showing that, even for the South Africa WC in 2010, the US, Brazil, and Mexico were 3 of the top 4 non-African travelers. No surprise that this may be even more so w/US & Mexico hosting. academic.oup.com/jae/article-...

academic.oup.com

Tourism and the 2010 World Cup: Lessons for Developing Countries

Abstract. Over recent years the BRICS (Brazil, Russia, India, China and South Africa) nations have secured the right to host several major international sp

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Florian Ederer @florianederer.bsky.social · 23/06/2026

The 2026 World Cup has shattered one of soccer's favorite myths. The biggest draws aren't England, France, Germany, Spain or the young stars. They're Mexico, the USA, Argentina, Brazil, and Messi (39) & Ronaldo (41). GOATs, immigration, and geography matter much more than FIFA rankings.

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Reposted by Florian Ederer

Centre for Economic Policy Research @cepr.org · 15/06/2026

CEPR Competition Policy RPN Webinar - Straight Talk: Draft New Merger Guidelines vs “Competitiveness” Mission 📆1 July at 5PM CEST 📍Online 🗣️ @tomvalletti.bsky.social @tomasoduso.bsky.social @florianederer.bsky.social @sandertordoir.bsky.social @cristinacaffarra.bsky.social Register: ow.ly/amBZ50ZbMWy

Review of the 20-year old EC Merger Guidelines (Draft issued by DG Comp end-of-April, out for consultation till end June) was long overdue, but an update was also very much triggered by the broader mission the Commission set itself post-“Draghi report” to pursue “competitiveness” with all its policy tools. “Scaling” European companies currently “too small to compete in global markets”, creating “European champions” capable of investing and innovating big have been a major motivation for an urgent review of merger policy at the political level across European capitals. The Draft has already been much discussed from the technical level (lots of events on “what do merger advisors need to know”) to the policy level (what do agency officials think?). But not to put too fine a point on it, there is an obvious tension between the political level’s aspirations for more consolidation and building champions, and the technical level which is offering updates to reflect current practice but no major reform.

Are the changes material? Are they meaningful or cosmetic? How do they measure up to the broader “mission”? Can merger control contribute to it? Should it? Should merger control be much more conversant with the broader economic policy toolbox? How?

The Competition Policy RPN usually hosts external speakers to discuss topical issues. This time we’ll give the floor to our own Steering Committee, all well-known economists with a long background in competition and economic policy (and no commercial advisory role):
Tommaso Valletti, former DG Comp Chief Economist and Professor at Imperial College London and CEPR
Tomaso Duso, Chair of the Monopolkommission and Professor, DIW Berlin and CEPR
Florian Ederer, Professor Boston University Questrom and CEPR
Sander Tordoir, Chief Economist at the Centre for European Reform
Cristina Caffarra, Honorary Professor at UCL

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Reposted by Florian Ederer

Düsseldorf Institute for Competition Economics (DICE) @dice.hhu.de · 19/06/2026

Außerdem: @florianederer.bsky.social hat sich die Ticketpreise der #FIFA bei der #WM einmal angesehen. Hat der Weltfußballverband ein Eigentor geschossen? Und: #Schweinezyklus für Juristen. @hhu.de #Kartellrecht #Monopol #Wirtschaftspolitik open.spotify.com/episode/7M4J...

open.spotify.com

Der Tankrabatt, die FIFA und andere Marktversagen

Bei Anruf Wettbewerb · Episode

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Reposted by Florian Ederer

Chaled Nahar @chalednahar.bsky.social · 11/06/2026

Zumindest für einige Spielen der WM gibt es wenig Nachfrage und immer noch viele Tickets. Die FIFA könnte sich bei diesen Spielen verzockt haben, glaubt ein Ökonom. Erste Freikartenaktionen sind zu beobachten - und einige Verkaufstricks. www.sportschau.de/fussball/fif...

sportschau.de

WM 2026: Verzockt? Die Probleme der FIFA beim Kartenverkauf

Die Preise der Tickets und deren Verkauf sind das Reizthema für Fans bei dieser WM. Kurz vor Turnierbeginn könnte sich die FIFA bei einigen Spielen mit den Preisen verzockt haben.

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Florian Ederer @florianederer.bsky.social · 09/06/2026

I talked to NBC about FIFA clandestinely dumping World Cup tickets for low-demand games onto resale platforms. This World Cup will be the ultimate K-shaped tournament for ticket prices. Some low-demand games will be almost free, but most games will be very expensive. youtu.be/pYR5Tb3D6SM?...

youtu.be

Economics professor suspects quiet World Cup ticket ‘dumping'

YouTube video by NBC10 Boston

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Reposted by Florian Ederer

Christian Traxler @chtraxler.bsky.social · 30/05/2026

Absolutely stunning climbing performances and incredible consistency over 3 weeks🚴‍♀️🚴‍♀️🚴‍♀️. Kudos Felix #Gall. First 🇦🇹 to finish a grand tour GC at #2! #GirodItalia www.domestiquecycling.com/en/news/gall...

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Reposted by Florian Ederer

Fiona Scott Morton @proffionasm.bsky.social · 30/05/2026

Great arguments explaining why the court got the wrong answer in the antitrust case against Meta.

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Florian Ederer @florianederer.bsky.social · 30/05/2026

Steve Salop, Allan Collard-Wexler, Marty Gaynor, Nancy Rose, Larry White, and I joined an amicus brief supporting reversal in FTC v. Meta. The district court's market-definition analysis departs from basic economics and risks weakening Section 2 enforcement in digital markets.

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Florian Ederer @florianederer.bsky.social · 27/05/2026

The range of conflicts of interests (journal editorships, self-owned consulting LLC, children working at the ASSA meeting) disclosed in the latest AEA executive committee meeting is super interesting. www.aeaweb.org/articles?id=...

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Reposted by Florian Ederer

Economics at Southampton @sotonecon.bsky.social · 13/05/2026

Today we hosted @florianederer.bsky.social (Boston University) for a #seminar on "Disclosure and the Pace of Drug Development", joint with Cunningham, Hodgson & Wang. More transparency, faster innovation? Think again: policy design can have surprising results! #econtwitter #Pharmaceuticals

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Florian Ederer @florianederer.bsky.social · 15/05/2026

It never gets old to see a paper come out in print. academic.oup.com/restud/artic...

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Reposted by Florian Ederer

Markus Marterbauer @markusmarterbauer.bsky.social · 14/05/2026

The case for (high) minimum wages and collective agreements. Great op-ed introducing Arin Dube‘s fantastic new book „The Wage Standard“.

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Florian Ederer @florianederer.bsky.social · 19/04/2026

Nobody is better at restoring the public's trust in universities than a NY Times columnist lecturing students on "how to fall in love with someone" ... ... or "how to divorce your wife of 27 years for your much younger research assistant"? We are not serious institutions.

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Florian Ederer @florianederer.bsky.social · 16/04/2026

“We’ve established that this self-preferencing is real and it gives an advantage to the platforms themselves. Whether that’s good or bad for consumers is much less well-established.” www.politico.com/newsletters/...

politico.com

The BASED Act’s big question mark

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Florian Ederer @florianederer.bsky.social · 08/04/2026

I like conferences in general, but I can't remember one that I enjoyed and where I learned as much as the Arnold Ventures BRIDGE event on online harassment and stalking. So inspiring to meet researchers and practitioners in this field! @jenniferdoleac.bsky.social

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Florian Ederer @florianederer.bsky.social · 24/03/2026

A new antitrust case against Vail and Alterra takes aim at Epic and Ikon pass pricing. Core issue: bundling + ecosystem power Cheap season passes, but very high day tickets → steering demand, locking in consumers, and squeezing independents dicellolevitt.com/dicello-levi...

dicellolevitt.com

DiCello Levitt, Co-Counsel File First Antitrust Class Action Against Vail Resorts and Alterra Over Epic and Ikon Ski Pass Pricing

DiCello Levitt, co‑counsel file first antitrust class action against Vail Resorts and Alterra, alleging inflated prices.

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Florian Ederer @florianederer.bsky.social · 17/03/2026

Excited to announce that our paper "Bayesian Persuasion with Lie Detection" is forthcoming in the Journal of Law & Economics ... ... with special thanks to the man who provided countless perfect examples for our analysis florianederer.github.io/lies.pdf

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Florian Ederer @florianederer.bsky.social · 14/03/2026

This joke has so many fantastic layers.

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Florian Ederer @florianederer.bsky.social · 12/03/2026

George Serafeim didn't disclose that he was collaborating with green investors while publishing (now discredited) research on the returns to such investments. HBS did nothing and even promoted his research. At the same time Ben Edelman disclosed his COIs and HBS still fired him.

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Florian Ederer @florianederer.bsky.social · 10/03/2026

The WSJ finally officially reports what we've known since early December. NBER cuts ties with Larry Summers.

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Reposted by Florian Ederer

Prof Dynarski @dynarski.bsky.social · 09/03/2026

To give you a sense of how big a deal this is: Summers’ PhD advisor made NBER what it is today

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Florian Ederer @florianederer.bsky.social · 25/02/2026

Remember Ran Duan, the restaurant owner overcharging customers? Turns out he's a media-savvy celebrity with luxury watches, a jet-set insta, diamond-draped models, shady business practices, drugs, a young woman's fatal overdose in his home, and a stunning failure to act.

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Florian Ederer @florianederer.bsky.social · 25/02/2026

“Free of formal responsibility, as President Emeritus and a retired professor, I [Larry Summer] look forward in time to engaging in research, analysis, and commentary on a range of global economic issues.” Is he going to make a POASTING comeback?

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Florian Ederer @florianederer.bsky.social · 25/02/2026

Just when things were about to get interesting again ...

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Florian Ederer @florianederer.bsky.social · 24/02/2026

Summer has the decathlon. Winter deserves one too. ❄️🏅 1 athlete, 10 events Giant Slalom Cross-country sprint Biathlon 10km Speed skating 500m Figure skating Ski jumping Snowboard cross Slopestyle skiing Luge Cross-country 50km Find the true winter 🐐.

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Florian Ederer @florianederer.bsky.social · 23/02/2026

Large-scale online deanonymization with LLMs shows how easily pseudonymous users can now be re-identified from unstructured text alone. When discussing our EJMR paper at NBER SI 2023 Catherine Tucker argued that rising compute would soon erode online anonymity. The future may already be here.

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Florian Ederer @florianederer.bsky.social · 18/02/2026

One of my favorite things in the Olympics is looking at the slowest racers in the alpine technical events (Giant Slalom & Slalom) and then wondering whether I could beat them. I am very confident I could beat the Indian guy in the slalom. Not 100% sure about the Eritrean in the Giant Slalom.

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Florian Ederer @florianederer.bsky.social · 18/02/2026

Filipe is definitely signed up for the Brazilian Championships (Giant Slalom) this weekend.

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Florian Ederer @florianederer.bsky.social · 18/02/2026

As cities became more economically important, medieval rulers shifted administrative control from landed to urban elites, but then created central assemblies or parliaments to ensure coordination and information flows. mitsloan.mit.edu/shared/ods/d...

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Filipe Campante @filipecampante.bsky.social · 14/02/2026

Hey @florianederer.bsky.social, you were absolutely right: Brazilians are now officially into alpine skiing. We like two sports — soccer and Brazilian champions — so as long as our boy Lucas is around, there will be an extra 200+ million alpine skiing diehards. :)

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