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Nelson Sunuwar

@nelson-snwr.bsky.social
646 followers 526 following 28 posts

empirical io at the university of zurich nelsonsunuwar.github.io

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Reposted by Nelson Sunuwar
Felix Montag @fmontag.bsky.social · 18/06/2026
New paper: "Mergers and the Demand for Protectionism" When does approving a merger risk undoing the import competition that justified the approval? Paper: felixmontag.com/files/2026_M... CEPR DP: cepr.org/publications... Short 🧵 1/8
Paper title: Mergers and the Demand for Protectionism

Abstract: Current enforcement practice does not consider how mergers alter the merging parties’ incentives to petition for trade protection. I document mergers between domestic producers across jurisdictions that are followed by tariff petitions. I develop a model to characterize the trade-policy channel of mergers. Theoretically, a domestic merger raises the profitability of tariffs when offshoring is unavailable; once offshoring is possible, the effect becomes ambiguous. I apply this framework to a merger between domestic producers in the U.S. appliance industry. Empirically, I find that when import competition is weak, the merging parties prefer to lower their own costs through offshoring; when import competition is strong, the merger makes it more profitable for them to raise their foreign rivals’ costs through tariffs. The resulting consumer harm is comparable in magnitude to the direct market-power effect. A hypothetical cross-border merger reduces the profitability of tariffs in this market.
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Jeff Gortmaker @jeffgortmaker.com · 07/03/2025
My job market's done, and I'm heading back to the NYC area! Excited to join Princeton Econ as a postdoc next year and NYU Stern Econ as an AP in 2026. In a happy twist of fate, this means @cconlon.bsky.social and I will be colleagues exactly 10 years after our first PyBLP commit:
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Alex MacKay @amackay.bsky.social · 05/03/2025
Forthcoming at the Journal of Political Economy: We find that consumer product markups increased more than 25 percent from 2006 to 2019. One contribution is an approach to estimate IO-style models at scale, yielding flexible consumer preferences and estimates of marginal costs.
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Joshua Gans @joshgans.bsky.social · 05/02/2025
I used AI to help write a paper and got it published. All in record time. What does this mean for research? My latest post. open.substack.com/pub/joshuaga...
open.substack.com
What will AI do to (p)research?
AI makes doing and communicating research much easier. Will there be any point to it?
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EARIE @earie-news.bsky.social · 29/01/2025
📢#EconSky Applications for EARIE's 3rd Summer School now open to Ph.D. students & researchers who defended thesis in past 3 years Title: Market Power: Empirical Framework and Tools Speaker: Jan De Loecker (KU Leuven) 🗓️Deadline March 17 📍Valencia, Spain ℹ️https://earie.org/earie-summer-school/
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EARIE @earie-news.bsky.social · 30/01/2025
#EconSky👇Papers submission opening shortly! ℹ️https://earie.org/ 🙏to @UV_EG for hosting the conference
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Phil Haile @philhaile.bsky.social · 03/01/2025
I've gotten a flurry of requests to access my slides on "Models, Measurement, and Language in Economics" (presumably thanks to the great new year's reading list from @rohitlamba.bsky.social). The file is publicly available via my web page, but here is the link: www.dropbox.com/scl/fi/ntgkb...
dropbox.com
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Simon Jäger @simonjaeger.bsky.social · 09/12/2024
I'm honored that @wirtschaftswoche.bsky.social has included me in their list of "Germany’s 30 until 2030". When I first saw the title, I thought they’d gotten my age wrong—turns out it’s not *that* kind of list! Their initiative highlights optimism and innovation in 🇩🇪! Congrats to all awardees!
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Axel Malmcrona @axelm.bsky.social · 19/11/2024
After a week of internal emails encouraging people to join BS (semi successful), my department now even has a starter pack! go.bsky.app/88sU6Fz
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Jakob Schneebacher @jschneebacher.bsky.social · 05/12/2024
Want to do a funded, joint Oxford-CMA PhD on market power? Howard Smith (Oxford) and the CMA Microeconomics Unit are looking for promising candidates interested in doing research on the topic of "Beyond markups: understanding changes to competition, concentration, and market power". #EconSky 1/2
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Florian Ederer @florianederer.bsky.social · 02/12/2024
Very much looking forward to my keynote speech on "Common Threads on Common Ownership" at the DICE Competition Policy Conference 2024 this Friday in Düsseldorf www.dice.hhu.de/en/competiti...
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Frank Verboven @frankverboven.bsky.social · 02/12/2024
Paper by Ryan Kellogg on oil and the green paradox below 👇 Other interesting and complementary paper on the role of strategic incentives is by our job market candidate Charlotte Decanniere: “Pump it? Market Power and the Energy Transition in the Global Oil Market” sites.google.com/view/charlot...
sites.google.com
Charlotte De Cannière
I am a PhD candidate in the Industrial Organization Group at KU Leuven. My research is supervised by Frank Verboven and Jan De Loecker. During fall 2023, I visited the Barcelona School of Economics, ...
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Matthew Leisten @leistenecon.bsky.social · 01/12/2024
#econsky What is, in your opinion, the biggest question IO has credibly settled? Seems most of our contributions are either (a) fancy methods; (b) negative results (e.g. don't regress price on HHI); (c) narrow in scope (yogurts, etc); or (d) contested (have markups actually risen?)
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Erik Brynjolfsson @erikbryn.bsky.social · 30/11/2024
Here's a great starter pack for folks interested in the economics of innovation, competition and IO go.bsky.app/Rchu8QX
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Jeff Gortmaker @jeffgortmaker.com · 29/11/2024
Happy to share that my and @cconlon.bsky.social's micro BLP paper was just accepted at the Journal of Econometrics! jeffgortmaker.com/files/Incorp... It's our 2nd tied to our PyBLP software, so here's a thread on surprising (to me) benefits of combining methods research with open source work. 1/6
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Chris Conlon @cconlon.bsky.social · 25/11/2024
I think my @nyulaw.bsky.social colleague Daniel Francis provides a clear and balanced summary of the Neo-Brandeis shift in antitrust. It is worth a read for all IO Economists (and perhaps more importantly macro economists who've recently discovered IO). www.promarket.org/2024/11/25/a...
promarket.org
After Neo-Brandeis - ProMarket
Daniel Francis reviews the evolutionary and revolutionary dimensions of the Biden administration’s antitrust work, and argues that these two projects have been in deep tension. He concludes that the a...
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Simon Toussaint @simontoussaint.nl · 22/11/2024
I made a list of Dutch economists. Nice to follow for: - journos (@marikestellinga.bsky.social, @mathijsbouman.nl etc) - policy ( @wbcs99twit.bsky.social, @lukkezen.bsky.social) - academics ( @robertdur.bsky.social, @basvdklaauw.bsky.social) DM me if you want to be added! bsky.app/profile/did:...
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Igor Letina @igorletina.bsky.social · 22/11/2024
#econsky, here is an interesting-looking conference for PhD students: wzb.eu/en/events/1s...
wzb.eu
1st Berlin Micro Theory and Behavioral Economics PhD Conference
This conference is dedicated to fostering discussion and collaboration among emerging scholars in the fields of microeconomic theory and behavioral economics.
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Marita Freimane @maritafreimane.bsky.social · 20/11/2024
Thank you, Florian, for highlighting my job market paper! 🎉 You can read it here: drive.google.com/file/d/1Sqb1... Below, a short thread. 👇 (1/8)
drive.google.com
JMP_Freimane_Gender_Bias_Feedback_and_Productivity.pdf
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Felix Montag @fmontag.bsky.social · 20/11/2024
Check out the great cohort of IO juniors on the market this year and if you are not on the list yet, make sure to sign up!
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Florian Ederer @florianederer.bsky.social · 19/11/2024
Female content creators on YouTube received significantly more negative feedback for comparable content. But the removal of public display of dislikes eliminated this gender gap and persistently increased female creator productivity and consumer demand. sites.google.com/view/maritaf...
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Jeff Gortmaker @jeffgortmaker.com · 18/11/2024
Hey #EconSky, I'm on the job market with an #EconJMP about open source software. OSS is a global public good, widely used and provided by the private sector, but the target of recent industrial policy. Paper: jeffgortmaker.com/files/Open_S... 1/
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Nelson Sunuwar @nelson-snwr.bsky.social · 16/11/2024
That concludes our two-day Market Power workshop on Camille Jordan, Columbian hydropower and many equilibrium Constellations.
Chris and his matrix to compressparticipants on a beautiful day in zurich, with on the left the UZH building
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Igor Letina @igorletina.bsky.social · 14/11/2024
Do we do threads🧵on #EconSky? I recently gave a talk on competition policy and startup acquisitions. Here are the main points: 1/ Since ~2001, acquisitions have overtaken IPOs as the primary "exit" for VC-backed startups. This shift impacts how competition plays out.
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Nelson Sunuwar @nelson-snwr.bsky.social · 13/11/2024
Yes! And co-organized with my buddy (and coauthor) Theo @theodorf.bsky.social And yes I agree, collusion can sometimes overcome a negative externality.. Sad to miss out on the CMA and FTC workshops
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Jakob Schneebacher @jschneebacher.bsky.social · 13/11/2024
In what is clearly an example of insufficient collusion, there are three (!) separate workshops on market power this Thursday/Friday. 1/5
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Felix Montag @fmontag.bsky.social · 12/11/2024
A new application for conglomerate effects merger control: the potential acquirer may destroy/sacrifice the target to curry favor with a future president and get new contracts for conglomerate businesses 🚀🚗
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Alex MacKay @amackay.bsky.social · 12/11/2024
A summary of two studies that look at the supply and demand factors behind price changes in consumer products over the period 2006 to 2023. Touches on markups and inflation. Thank you UVA for featuring our research. as.virginia.edu/investigatin...
as.virginia.edu
Investigating Markups: Evidence of Greedflation?
Prices for consumer goods have rapidly increased in recent years. At the same time, some corporations are reporting record profits. Coincidence? A UVA economist’s research may offer some answers.
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Nelson Sunuwar @nelson-snwr.bsky.social · 08/11/2024
Always look forward to this list!
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Florian Ederer @florianederer.bsky.social · 04/11/2024
OPEC’s market power reduced emissions by over 67 GtCO2, equating to $4,073 billion in climate damages and 17.8% of the carbon budget needed for the 1.5°C Paris Agreement target. nber.org/papers/w33115
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Nelson Sunuwar @nelson-snwr.bsky.social · 28/10/2024
#econsky On November 14 and 15 the Market Power Workshop is happening again. Once again, we have a great lineup. For information on how to attend, see: sites.google.com/view/marketp...
schedule day 1, see readable schedule on the shared websiteschedule day 2, see readable schedule on the shared website
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Nelson Sunuwar @nelson-snwr.bsky.social · 22/10/2024
Great thread by Chris Conlon on twitter threadreaderapp.com/thread/18487...
threadreaderapp.com
Thread by @conlon_chris on Thread Reader App
@conlon_chris: I think this is an important insight for the labor market literature, one IO economists have been (w/o success) pushing for some time. The key insight from IO is that that concentration...
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Bernhard Ganglmair @ganglmair.bsky.social · 19/10/2024
"Your replication package has been accepted." 🎉 This project is older than my kids combined. Finally completed just in time for Emanuele's new role at DG Comp. CHIEF ECONOMIST, baby. Congratulations!
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Fiona Scott Morton @proffionasm.bsky.social · 19/10/2024
Musk faces an asymmetry is his huge exposure to government contracts: if Dems win, his support of Trump won’t harm his business; but Trump will try to cancel all Musk contracts if he supports Dems. Plus they are both bullies.
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Florian Ederer @florianederer.bsky.social · 16/10/2024
How does common ownership soften competition? Proxy advisors like ISS play a big role. For commonly-owned firms, ISS is more likely to support director interlocks, support mergers, and oppose performance-sensitive managerial incentive contracts. papers.ssrn.com/sol3/papers....
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Igor Letina @igorletina.bsky.social · 15/10/2024
For IO economists: both MaCCI and CRESSE sent out their call for papers today.
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Steve Cicala @stevecicala.bsky.social · 14/10/2024
The IO prize has been sent back to referees for additional comments.
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Nelson Sunuwar @nelson-snwr.bsky.social · 11/10/2024
It does not get more fun (in empirical IO) than this:
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Frank Verboven @frankverboven.bsky.social · 11/10/2024
Together with Jo Van Biesebroeck we just finished the paper "Demand, Competition and Public Policy in the Automobile Industry - An Overview of Research since BLP" Happy reading, while waiting to see whether Empirical IO will get a Nobel prize this year drive.google.com/file/d/1RPN8...
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Shosh Vasserman @shoshievass.bsky.social · 03/10/2024
I'm hiring a pre-doc to work with me on empirical IO/applied micro projects starting in Fall '25! Details below and instructions here: shoshanavasserman.com/call_for_pre... International students (who need J1) are welcome & non-econ bgs are fine given interest + curiosity. Please apply :)
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Jonathan B. Baker @jbbecon.bsky.social · 01/10/2024
@proffionasm.bsky.social explain why we think market power has grown and antitrust needs strengthening, and comment on recent papers by Carl Shapiro & Ali Yurukoglu and Nathan Miller. You can find our comment @promarket.bsky.social, here: www.promarket.org/2024/10/01/m...
promarket.org
Market Power Has Grown and Antitrust Needs Strengthening, Despite What Shapiro & Yurukoglu and Miller Suggest - ProMarket
Jonathan B. Baker and Fiona Scott Morton challenge the interpretations of two new papers from Carl Shapiro & Ali Yurukoglu and Nathan Miller, which question economy-wide trends toward a rise in market...
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Jakob Schneebacher @jschneebacher.bsky.social · 13/09/2024
I am trying to be more active on here, and have not yet seen an IO or org econ starter pack, so here is an attempt at one: go.bsky.app/Rchu8QX Please shout out if I have forgotten someone, or when others join. #EconSky
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Tomaso Duso @tomasoduso.bsky.social · 24/01/2024
🚨🚨 Deadline February 11 2024 🚨🚨 If you want to do a #PhD in #Economics, join the vibrant community in #Berlin and apply to one of our two cooperating programs: @diw.de: www.diw.de/en/diw_01.c.... @bseberlin.bsky.social: berlinschoolofeconomics.de/phd-programm
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Bernhard Ganglmair @ganglmair.bsky.social · 14/01/2024
It's here, the program: Disclosure, Information Sharing, and Secrecy (DISS 2024) Join us on Zoom, February 26 & 27, 1 p.m CET / 7 a.m. ET Register here: bit.ly/diss2024 @tmartens.bsky.social #EconSky
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Arin Dube @arindube.bsky.social · 12/01/2024
There has been a 5 percentage point increase in the share of women among Assistant Professor positions in US economics departments over the past 5 years, as compared to less than 1 percentage point increase during the 5 years prior. This seems quite encouraging. www.ft.com/content/4f7d...
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Igor Letina @igorletina.bsky.social · 09/01/2024
Jean-Michel Benkert and I are organizing a small workshop on the economics of startup acquisitions. We welcome theoretical and empirical papers on killer acquisitions, acquihires, incentives to innovate, and other topics related to startup acquisitions. CfP: www.igorletina.com/files/cfp_es... 📈📉
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Alon Eizenberg @aloneizenberg.bsky.social · 05/12/2023
Join us tomorrow for the CEPR VIOS workshop 6 December 2023: Michael Dickstein (NYU Stern), Title: “Patient Costs and Physicians’ Information”, Discussant: Alon Eizenberg (The Hebrew University of Jerusalem and CEPR)  More info here: cepr.org/events/event...
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Ulrich Kaiser @ulrichkaiser.bsky.social · 04/12/2023
Conference is June 6/7, submission deadline is January 24, 2024.
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Igor Letina @igorletina.bsky.social · 22/11/2023
Another proof that IO is general interest. From a newspaper ad I saw today in the train station: "Hospital mergers make everything (better/worse)." The final word is covered by a photo of a newspaper.
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