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Heski Bar-Isaac

@profeski.bsky.social
971 followers 587 following 66 posts

Dad, husband, Jew, Israeli, Canadian, Brit, economist, and occasional haiku-writer (though not always in that order)

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Heski Bar-Isaac @profeski.bsky.social · 05/06/2026
Looking forward to this
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Heski Bar-Isaac @profeski.bsky.social · 17/05/2026
Glad to see it in the EJ and looking forward for more to come!
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Heski Bar-Isaac @profeski.bsky.social · 15/05/2026
Ban parity clauses? The prices you see don't budge. The ones you don't, do. doi.org/10.1093/ej/u....
doi.org
The Price Effects of Prohibiting Price Parity Clauses: Evidence from Global Hotel Chains
Abstract. Dominant platforms like Booking.com have often imposed Price Parity Clauses to prevent lower prices on alternative sales channels. We provide qua
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Heski Bar-Isaac @profeski.bsky.social · 18/02/2026
And though I ran out of steam, if this whets any appetite. Here is a bit year's worth of EJ papers in haiku form (One of the strange things that the Covid period did for me). sites.google.com/site/heskiba...
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Heski Bar-Isaac @profeski.bsky.social · 18/02/2026
(and of course getting a chance to chat economics with some fantastic co-editors and associate editors). Very best to all.
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Heski Bar-Isaac @profeski.bsky.social · 18/02/2026
It's been a priviledge to serve in this position (if sometimes exhausting after 935 new submissions ...). The greatest part of the job is seeing how many people in the profession take the role of refereeing so diligently, and constructively, and work hard to build this community.
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Heski Bar-Isaac @profeski.bsky.social · 18/02/2026
Wishing Jin the very best and glad to leave the journal with an upgrade to the editorial board.
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Heski Bar-Isaac @profeski.bsky.social · 25/11/2025
Congratulations on the many impressive accomplishments at the CMA, and very best with the new role.
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Joshua Gans @joshgans.bsky.social · 01/09/2025
Today, I am excited to release a paper that has been five years in the making, titled “Endogenous Firm Ownership in General Equilibrium.” I think it is the best thing I have done. www.nber.org/papers/w34187
nber.org
Endogenous Firm Ownership in General Equilibrium
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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Heski Bar-Isaac @profeski.bsky.social · 24/07/2025
Very proud of this honour and to be in some great company.
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Florian Ederer @florianederer.bsky.social · 15/07/2025
I was thrilled to join Emanuele Tarantino, Susan Athey, Cristina Caffarra & others for CEPR’s webinar on “Updating Merger Control as an Economic Policy Tool for Europe?” How can merger policy adapt to support innovation, growth & strategic autonomy? 📺: youtu.be/CO_IJhFczCk
youtu.be
Updating Merger Control as an Economic Policy Tool for Europe?
YouTube video by CEPR & VideoVox Economics
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Centre for Economic Policy Research @cepr.org · 15/07/2025
📢 #CallForPapers To honour the memory of Ghazala Azmat, the Economics Department of SciencesPo is creating an award in her name. Junior researchers can submit a paper in economics of discrimination, gender, education & organizational #economics. Submit by 31 August. cepr.org/events/ghaza... #EconSky
To honour the memory of Ghazala Azmat, the Department of Economics of SciencesPo is creating an award in her name.

Ghazala made important contributions in a large number of fields, spanning the economics of discrimination, gender, education and organizational economics. The award will promote work in those fields by young scholars.

The first edition of this award will consist of a 5,000 euro prize for the best paper in this set of fields by junior researchers. The selection of the laureate will be carried out by a scientific committee composed of Pierre Cahuc, Alan Manning and Barbara Petrongolo.

Eligibility for the prize requires that all authors have obtained their PhD after 1 September 2018. Papers written jointly with more senior researchers will not be considered.

The prize will be awarded at SciencesPo during the event organised in memory of Ghazala on 10 December 2025. One of the authors of the prize winning paper will present the work at this event.

Applications must be submitted by 31 August 2025.
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Heski Bar-Isaac @profeski.bsky.social · 16/06/2025
Many thanks for including me. Great program, interesting people, and lots of food for thought.
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Heski Bar-Isaac @profeski.bsky.social · 11/06/2025
This put it well for those not lucky enough to have known Ghazala www.eeassoc.org/news/memoria... She made us all better. Truly devastating.
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Tim Bresnahan @timobres.bsky.social · 02/06/2025
Mike Scherer, a leader in industrial organization economics, in the study of innovation, and in many other topics since the 1960s, has died at 92. Strikingly eclectic, he wrote (inter alia) about weapons procurement and the commercialization of classical music. More than anything /1
Cover of "Industrial Market Structure and Economic Performance"
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Heski Bar-Isaac @profeski.bsky.social · 14/05/2025
I want to make it training
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Heski Bar-Isaac @profeski.bsky.social · 14/05/2025
athletes often spend a lot of time going from point a to point a and seem to believe that there is a reason to do so ...
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Jakob Schneebacher @jschneebacher.bsky.social · 24/04/2025
Join the CMA Microeconomics Unit as a UKRI Policy Fellow for 18 months! Awards buy out teaching/admin time to allow you to focus on a CMA-relevant research project, while embedded part-time in the Unit. The call for fellowships is here: www.ukri.org/opportunity/... 1/
ukri.org
UKRI policy fellowships 2025
Spend 18 months as a UK Research and Innovation (UKRI) core policy fellow, Natural Hazards and Resilience policy fellow or What Works Innovation fellow to inform policy to address pressing national an...
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Sascha O. Becker @essobecker.bsky.social · 24/04/2025
I love the Economic Journal referees ❤️ Revised version of a paper received on April 15. Sent out to original reviewers on the same day. All four referees have come back to me in less than 10 days. Paper is now conditionally accepted, subject to checks by the EJ Data Editor 🚀 @resmedia.bsky.social
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Heski Bar-Isaac @profeski.bsky.social · 16/04/2025
the last one is true? maybe time for a new schtick? time to write papers ...
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Heski Bar-Isaac @profeski.bsky.social · 10/04/2025
I started suggesting that this is probably good advice (for an author) but depressing (socially costly in establish norms of what a paper is supposed to look like). Just one more example to add to prisonners' dilemma examples in class. A third party (e.g. editor) in principle can help internalize
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Heski Bar-Isaac @profeski.bsky.social · 10/04/2025
I guess it depends on whether you think that the costs of producing (and reviewing) this length are neglible or not in relation to any (positive?) social value that they may generate.
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Heski Bar-Isaac @profeski.bsky.social · 09/04/2025
Probably the right advice for authors (and may be right as first point), but point 1 is depressing as heck to me and why we get these massive unreadable tomes. I'd like to think that editors (try to) fight back on trying to get to essential points and readable papers; but fighting norms is hard.
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Heski Bar-Isaac @profeski.bsky.social · 04/04/2025
TSE is putting together an IO and Finance conference in October, submissions now open and details at www.tse-fr.eu/conferences/...
tse-fr.eu
TSE Industrial Organization & Finance Conference
TSE Industrial Organization & Finance Conference, October 16–17, 2025, room Auditorium 4.
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Heski Bar-Isaac @profeski.bsky.social · 29/03/2025
There's a link in that article to a radio interview with Meg on CBC which is as frank and clear as you would expect.
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Heski Bar-Isaac @profeski.bsky.social · 26/03/2025
Time to first decisions at The Economic Journal academic.oup.com/ej?login=true. Thanks to all the hard work and efforts of the referees, AEs and other editors. Please submit your excellent papers and expect an efficient and thoughtful response.
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Heski Bar-Isaac @profeski.bsky.social · 14/03/2025
My old roommate at Oxford switched from law to Sanskrit for undergrad and made a fortune from countless scholarships for which he was the only qualified applicant; obviously in PE now 😂
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Heski Bar-Isaac @profeski.bsky.social · 12/03/2025
Folks have put together starter packs of folks to follow. Here is an example bsky.app/starter-pack... but I would search for other topics for people you might be interested in.
bsky.app
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Heski Bar-Isaac @profeski.bsky.social · 06/03/2025
On the second there’s work on boundedly rational managers (I have in mind an old paper of Mo Xiao and Avi Goldfarb) that may be relevant but I haven’t really kept track of either literature.
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Heski Bar-Isaac @profeski.bsky.social · 06/03/2025
On the first part there’s an old IO literature on conduct parameters that is about the objective function (are we maximizing individual profits or colluding). I think Chris Sullivan at Wisconsin is a more recent contributor and could find more.
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Heski Bar-Isaac @profeski.bsky.social · 25/02/2025
and I guess that last example suggests that conformity is not inconsistent with competition... good ideas diffuse (and sometimes people too: RES has now lost data editors to both the AEA and ES).
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Heski Bar-Isaac @profeski.bsky.social · 25/02/2025
Also forgot data editors and replication checks which is a big and relatively new innovation that was introduced and rapidly became a norm
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Heski Bar-Isaac @profeski.bsky.social · 25/02/2025
Publication lags (a year or more used to be normal) advice to referees (has become pretty standard but is a fairly recent innovation). To me a lot of unease and dysfunctionality is the status obsession and tyranny of top 5 and I don’t see much that moves the needle
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Heski Bar-Isaac @profeski.bsky.social · 25/02/2025
I guess I’m old. We’ve had attempts at tiered journals (BE press a million years ago now to some extent the society suites) transferring reports (EJ, AeA suite, ES, JPE), term limits (EJs), attempts at new blood (JPE), up or out processes (economic inquiry), short form outlets (insights …)
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Heski Bar-Isaac @profeski.bsky.social · 25/02/2025
How can we get genuine competition (among journals? societies?) to generate ideas (as has been the case for many of the proposals: term limits, sharing reports, advice to referees etc)
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Heski Bar-Isaac @profeski.bsky.social · 25/02/2025
What is the market failure? why do we think the solution is centralized committee and coordinated behaviour? What do we think the friction is that gets in the way of competition?
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Remy Levin @remylevin.bsky.social · 25/01/2025
Hey #EconSky 📉📈 and #EvoSky, check it out: @omermoav.bsky.social is here! Omer should be a day-one follow for Econ and Evolution theorists, macro folks, and anyone who cares about integrity in the profession or in Science generally.
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Heski Bar-Isaac @profeski.bsky.social · 25/01/2025
Or get some AI to give you the gist so you don’t have to pass page 6 😂
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Heski Bar-Isaac @profeski.bsky.social · 25/01/2025
If you’ve never read it you might enjoy Tibor Scitovsky’s “joyless economy”
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Martin Peitz @martin-peitz.bsky.social · 21/01/2025
The promised second book on the economics of platforms is still in the making, but the first one continues to be available: www.cambridge.org/core/books/e...
cambridge.org
The Economics of Platforms
Cambridge Core - Industrial Economics - The Economics of Platforms
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Diane Coyle @dianecoyle1859.bsky.social · 21/01/2025
Call for papers for this excellent IO/competition workshop 2-3 June in Cambridge, organised by my colleagues Flavio Toxvaerd & @cgenakos.bsky.social oligoworkshop2025.econ.cam.ac.uk
oligoworkshop2025.econ.cam.ac.uk
Oligo Workshop 2025
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Bernhard Ganglmair @ganglmair.bsky.social · 11/01/2025
My colleague Martin Peitz @martin-peitz.bsky.social of IO textbook, platforms, everything-digital-markets fame is on the sky now. Give him a warm welcome! #EconSky
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Daniel Ershov @ershovd.bsky.social · 07/01/2025
I strongly believe in reading ALL of Adam Smith's work. Please start from this recent paper on identifying/measuring dynamic complementarity: papers.ssrn.com/sol3/papers....
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Heski Bar-Isaac @profeski.bsky.social · 04/01/2025
🤣
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Heski Bar-Isaac @profeski.bsky.social · 03/01/2025
Tfw a former student from 15 years ago recognizes you when you’re on holiday and tells your kids you were an awesome prof.
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Sascha O. Becker @essobecker.bsky.social · 03/01/2025
It's February at The Economic Journal ❤️ Lots of great papers, long (9) and short (2). Enjoy! academic.oup.com/ej/issue/135...
academic.oup.com
Volume 135 Issue 666 | The Economic Journal | Oxford Academic
The Economic Journal is the Royal Economic Society's flagship title, and is one of the founding journals of modern economics. The journal provides a platform for and imaginative economic research for ...
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Aviv Nevo @avivnevo.bsky.social · 18/12/2024
www.ftc.gov/business-gui...
ftc.gov
Getting to the bottom line: The FTC’s bipartisan Junk Fees Rule and your business
.field--name-body a[href$=".pdf"]:after, .field--name-body a[href$=".doc"]:after, .field--name-body a[href$=".docx"]:after { content: ''; display: none; -webkit-mask-image: url("..
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The Visible Hand Podcast @visiblehandpod.bsky.social · 16/12/2024
Episode 86: Dan Gross on Labour Market Responses to Automation. #EconSky. Listen here at: www.thevisiblehand.uk/episodes/epi...
thevisiblehand.uk
Episode 86: Dan Gross on Labour Market Responses to Automation — The Visible Hand
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Industrial Organization Society @indorgsociety.bsky.social · 13/12/2024
Our call for papers has been posted! Get ready for #IIOC2025 May 2-4 in Philadelpha. Submission deadline 1/31. www.indorgsociety.org/conference
indorgsociety.org
International Industrial Organization Conference | Industrial Organization Society
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Heski Bar-Isaac @profeski.bsky.social · 13/12/2024
The vast majority of people I reach out to repsond quickly and helpfully; but the few that don't are frustrating and enough to make me really appreciate that large majority and that the community functions surprisingly well.
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