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Jonathan B. Baker

@jbbecon.bsky.social
948 followers 124 following 74 posts

Author, The Antitrust Paradigm: Restoring a Competitive Economy Profile: www.american.edu/profiles/faculty/e…

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Jonathan B. Baker @jbbecon.bsky.social · 31/08/2026
My new paper on Trumpian authoritarianism & the future of antitrust is about a fundamental threat to the way antitrust supported inclusive economic growth for 8 decades. Rebuilding antitrust requires procedural & substantive reforms & restoration of liberal democracy. Paper: ssrn.com/abstract=736...
ssrn.com
Trumpian Authoritarianism and the Future of Antitrust
Trumpian authoritarianism harms antitrust and, consequently, national prosperity, in two ways. First, direct political influence in antitrust enforcement will i
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Jonathan B. Baker @jbbecon.bsky.social · 26/08/2026
Why is the D.C. Circuit’s 2001 Microsoft decision still important for antitrust law? It made 6 affirmative contributions and a negative one—a dog that didn’t bark. A thread and a link to the paper follow. 1/11
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Spencer Weber Waller @sweberwaller.bsky.social · 30/07/2026
On October 15th Methuen Drama will publish my book Power and Greed: Monopolies, Mergers, and Cartels on the American Stage. Learn more at my new web site. www.powerandgreed.com
powerandgreed.com
Power and Greed — Monopolies, Mergers, and Cartels on the American Stage
The official website for Power and Greed: Monopolies, Mergers, and Cartels on the American Stage by Spencer Weber Waller, published by Methuen Drama.
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Jonathan B. Baker @jbbecon.bsky.social · 20/07/2026
It’s an informed and valuable reference book based on modern economics.
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Jonathan B. Baker @jbbecon.bsky.social · 01/03/2026
The best books to read before—or after—you learn antitrust law Something fun I originally posted in 2023 bookdna.com/best-books/r...
bookdna.com
The best books to read before—or after—you learn antitrust law
Jonathan B. Baker shares the 5 best books on reads before—or after—you learn antitrust law. Have you read The New Deal and the Problem of Monopoly?
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Jonathan B. Baker @jbbecon.bsky.social · 31/12/2025
In 2025 I published 4 articles 1. "Competition Policy" in a book on econ consequences of the new admin cepr.org/publications... 2. "Trumpian Populism and the Changing Intellectual Landscape in Antitrust: Century-Old Resonances, the New Right, and the Possible End of an Era" ssrn.com/abstract=562...
cepr.org
The Economic Consequences of The Second Trump Administration: A Preliminary Assessment
==> REVISED & EXPANDED EDITION The Economic Consequences of the Second Trump Administration: A Preliminary Assessment delivers a timely, expert analysis of the economic shifts unfolding following President Trump’s return to office. Amid sweeping tariffs, sharp breaks in global alliances, assertions of presidential supremacy, government downsizing, deregulation, and risks to the rule of law, this volume offers thoughtful, evidence-based insights into how these policies may affect growth, trade, investment, inflation, stability, and the role of the dollar.
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Jonathan B. Baker @jbbecon.bsky.social · 17/12/2025
Excerpt from The Antitrust Paradigm (2019) that seems relevant today
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Jonathan B. Baker @jbbecon.bsky.social · 02/12/2025
Includes an update to my chapter on Competition Policy. Free to download at cepr.org/publications/books-and-reports/economic-consequences-second-trump-administration-preliminary
cepr.org
The Economic Consequences of The Second Trump Administration: A Preliminary Assessment
==> REVISED & EXPANDED EDITION
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Jonathan B. Baker @jbbecon.bsky.social · 05/11/2025
My new article “Trumpian Populism and the Changing Intellectual Landscape in Antitrust: Century-Old Resonances, the New Right, and the Possible End of an Era” looks at the views of current senior antitrust enforcement officials. 1/3
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Tim Bresnahan @timobres.bsky.social · 08/08/2025
New Working Paper! Lucky to work with Shane Greenstein @shanegreenstein.bsky.social and Pai-Ling Yin on "New Economic Forces Behind the Value Distribution of Innovation." Abstract and link follow. lnkd.in/ew6UHk3v
Abstract of "New Economic Forces Behind the Value Distribution of Innovation."  Advances in a general-purpose technology (GPT) enable many firms to invent complementary inventions, or co-inventions, making the GPT more valuable. This study examines the empirical implications of a straightforward model in which firms choose either incremental or novel co-invention. Incremental co-inventors aspire to small gains at low costs and with less uncertainty. Novel co-inventors introduce new products or services with the potential for large returns, but do so at high costs and with uncertain outcomes. Similar firms investing in incremental co-invention will create value proportional to their existing business, a benchmark we illustrate with the experiences at local radio and newspapers. The study then examines the value of co-inventions for the World Wide Web and mobile ecosystems, focusing on success in 2013, using data from many sources. This data supports analysis comparing the incremental and novel regimes. The latter should display a distinctly different up! per tail of the distribution of returns. We show that the value distributions for incremental and novel co-invention are far apart. Incremental co-invention is more widely distributed across regions, industries, and firms. Success from novel co-invention is rare, challenging, and the source of the largest value. In the aggregate, novel co-invention creates the most value, so the overall value distribution remains concentrated in a few industries, regions, and firms.
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Tim Bresnahan @timobres.bsky.social · 04/08/2025
Looming problems from BLS statistics politicization. Social security benefits and many long term labor market contracts are indexed to the CPI. BLS makes the CPI. Recipients care about indexed cost of living increases, a lot. /1
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Jonathan B. Baker @jbbecon.bsky.social · 21/07/2025
I recently reviewed Louis Kaplow’s book "Rethinking Merger Analysis." The review evaluates the book’s discussion of market definition, coordinated effects, entry, efficiencies, and the welfare standard. Available in The Antitrust Source or at ssrn.com/abstract=533...
ssrn.com
Looking at Merger Review from Outside an Ivory Tower
This article reviews Louis Kaplow, Rethinking Merger Analysis (MIT Press 2024). The review evaluates the book's discussion of five major topics:&
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Fiona Scott Morton @proffionasm.bsky.social · 26/06/2025
Are you wondering how to make monopoly digital platforms more competitive? I have a new book with answers. Intro article here in ProMarket: www.promarket.org/2025/06/26/a...
promarket.org
A Pro-Competitive Handbook for Policymakers to Unlock Digital Competition - ProMarket
Fiona Scott Morton introduces her new book on how regulators and policymakers can promote competition and fairness in digital markets.
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Jonathan B. Baker @jbbecon.bsky.social · 24/06/2025
Lunch with some DC area antitrust professors. With @profgavil.bsky.social @lancierifilippo.bsky.social Dale Collins and @stevesalop.bsky.social
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Centre for Economic Policy Research @cepr.org · 24/06/2025
While the second Trump administration's initial moves in #antitrust enforcement suggested continuity, more recent actions outside the realm of antitrust enforcement have the potential to change #competitionpolicy dramatically, explains @jbbecon.bsky.social. cepr.org/publications... #EconSky
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Centre for Economic Policy Research @cepr.org · 18/06/2025
📢 New CEPR #eBook out NOW! 📚 "The Economic Consequences of the Second Trump Administration: A Preliminary Assessment" Editors: Gary Gensler, @simonhrjohnson.bsky.social, @upanizza.bsky.social, @wederdim.bsky.social Free download: cepr.org/publications... #EconSky
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Fiona Scott Morton @proffionasm.bsky.social · 04/06/2025
I have a new book! Digital Platform Regulation. Fun analysis of what society should do to get some competition out of of our favorite gatekeeper platform. Relevant to the DMA and US antitrust remedies. And free! Download here: som.yale.edu/centers/thur...
som.yale.edu
Digital Platform Regulation
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Jonathan B. Baker @jbbecon.bsky.social · 29/04/2025
When AAG Slater roots her “America First Antitrust” (www.justice.gov/opa/speech/a...) in “conservative values,” she recalls judicial thinking from over a century ago. 1/5
justice.gov
Assistant Attorney General Gail Slater Delivers First Antitrust Address at University of Notre Dame Law School
Good afternoon. Thank you so much for having me. It is an honor to be here at Notre Dame to give my first formal address as Assistant Attorney General for the Antitrust Division. I’ve had many offers
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Jonathan B. Baker @jbbecon.bsky.social · 23/04/2025
Six years old…and still worth reading 🙂
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ProMarket @promarket.bsky.social · 11/04/2025
NEW: After the second Trump administration initially appeared to maintain significant continuity in antitrust enforcement, the president more recently thrust the agencies into turmoil. Those later actions create troubling risks to the economy and the rule of law, writes @jbbecon.bsky.social.
promarket.org
Threats to Competition Policy in the Second Trump Administration: Is Antitrust Enforcement Following Alice Down the Rabbit Hole? - ProMarket
After the second Trump administration initially appeared to maintain significant continuity in antitrust enforcement, the president more recently thrust the agencies into turmoil. Those later actions ...
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Jonathan B. Baker @jbbecon.bsky.social · 11/04/2025
Threats to Competition Policy in the Second Trump Administration: Is Antitrust Enforcement Following Alice Down the Rabbit Hole? My new blog post: www.promarket.org/2025/04/11/t...
promarket.org
Threats to Competition Policy in the Second Trump Administration: Is Antitrust Enforcement Following Alice Down the Rabbit Hole? - ProMarket
After the second Trump administration initially appeared to maintain significant continuity in antitrust enforcement, the president more recently thrust the agencies into turmoil. Those later actions ...
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Jonathan B. Baker @jbbecon.bsky.social · 27/01/2025
What do these three hypothetical examples, suggested by antitrust investigations, have in common? A thread summarizing my newly posted paper: ssrn.com/abstract=511.... 1/9
ssrn.com
Conduct that Increases Market Power Without Lessening Competition: A Challenge for Antitrust Law
Conduct that violates the antitrust laws usually lessens competition and increases market power. But some conduct increases market power without lessening compe
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Jonathan B. Baker @jbbecon.bsky.social · 18/12/2024
How concerns about political misuse of the antitrust laws looked as the 1st Trump admin got underway, from The Antitrust Paradigm
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sanjukta paul @sanjukta.bsky.social · 10/12/2024
Just want to plant the seed: the Antitrust Law Journal, which has a wide reach, is very serious about broadening its author base--not just in terms of identity but in terms of viewpoints/perspectives. As an ed bd member I'd love to talk with potential authors who may not have considered this option!
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Florian Ederer @florianederer.bsky.social · 19/11/2024
Super interesting paper by @jbbecon.bsky.social on the policy impact of two of my antitrust idols (@timobres.bsky.social and @stevesalop.bsky.social) academic.oup.com/antitrust/ad...
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Herb Hovenkamp @sherman1890.bsky.social · 17/11/2024
Good historical perspective by Jon Baker on antitrust’s use of economists, with some pushback on the theory that they either reflect or determined the rise of neoliberalism. academic.oup.com/antitrust/ad...
academic.oup.com
How economists influence antitrust: the contributions of Tim Bresnahan, Janusz Ordover, Steve Salop, and Bobby Willig
Abstract. Economists influence antitrust policy through theoretical and empirical economic research, translation and synthesis of that research, direct par
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Jonathan B. Baker @jbbecon.bsky.social · 18/11/2024
Just published: How economists influence antitrust: the contributions of Tim Bresnahan, Janusz Ordover, Steve Salop, and Bobby Willig. #EconSky doi.org/10.1093/jaen...
doi.org
How economists influence antitrust: the contributions of Tim Bresnahan, Janusz Ordover, Steve Salop, and Bobby Willig
Abstract. Economists influence antitrust policy through theoretical and empirical economic research, translation and synthesis of that research, direct par
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Jonathan B. Baker @jbbecon.bsky.social · 04/10/2024
How do economists influence antitrust? My essay frames and draws on profiles of four IO economists influential in antitrust: Tim Bresnahan (@timobres.bsky.social), Janusz Ordover, Steve Salop (@stevesalop.bsky.social), and Bobby Willig. Available at ssrn.com/abstract=4630062
ssrn.com
How Economists Influence Antitrust:<span> </span>The Contributions of Tim Bresnahan, Janusz Ordover, Steve Salop, and Bobby Willig
<div> Economists influence antitrust policy through theoretical and empirical economic research, translation and synthesis of that research, direct participati
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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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Fiona Scott Morton @proffionasm.bsky.social · 12/09/2024
My take on the Draghi report on competitiveness below. No conflict with competition at all - competition supports innovation, resilience, and healthy industrial policy. www.bruegel.org/first-glance...
bruegel.org
The Draghi report and competition policy
The long-awaited Draghi report is a boost to robust competition enforcement
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ProfGavil.bsky.social @profgavil.bsky.social · 12/08/2024
Pleased to share that the fifth edition of my antitrust law casebook with Bill Kovacic and jbbecon.bsky.social has just been published. Our field is changing and the book provides updates and new perspectives. www.westacademic.com/Antitrust-La...
jbbecon.bsky.social
Jonathan B. Baker (@jbbecon.bsky.social)
Author, The Antitrust Paradigm: Restoring a Competitive Economy https://www.wcl.american.edu/community/faculty/profile/jbaker/bio
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ProMarket @promarket.bsky.social · 16/02/2024
Our symposium has discussed the new paper, “The Political Economy of the Decline of Antitrust Enforcement in the United States.” In this article, one of the co-authors @ericposner.bsky.social responds to discussants’ critiques and comments. www.promarket.org/2024/02/16/b...
promarket.org
Big Business’ Influence in the Decline of Antitrust Enforcement - ProMarket
Why has antitrust enforcement declined in the United States since the 1970s? Is it due to the preferences of voters, business influence, or an alternative explanation altogether? In this symposium, Jo...
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ProMarket @promarket.bsky.social · 13/02/2024
Business and economic thought instituted at least since the Reagan Revolution in the US have promoted firms’ narrowly self-interested, profit-maximizing conduct. This paradigm leads to social distrust and insufficient cooperation, @stevesalop.bsky.social explains www.promarket.org/2024/02/13/w...
promarket.org
Why Business Should Be More Prosocial, and Ten Guidelines for How - ProMarket
Business and economic thought instituted at least since the Reagan revolution in the United States have promoted firms’ narrowly self-interested, profit-maximizing conduct even at the expense of consu...
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ProMarket @promarket.bsky.social · 09/02/2024
Why has antitrust enforcement declined in the U.S. since the 1970s? Is it due to the preferences of voters, business influence, or an alternative explanation altogether? @jbbecon.bsky.social critiques the big business capture theory and suggests an alternative. www.promarket.org/2024/02/09/h...
promarket.org
Has Antitrust Been Captured by Big Business Interests? It’s Not So Simple - ProMarket
Why has antitrust enforcement declined in the United States since the 1970s? Is it due to the preferences of voters, business influence, or an alternative explanation altogether? In this symposium, Jo...
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ProMarket @promarket.bsky.social · 07/02/2024
Eleanor Fox evaluates “The Political Economy of the Decline of Antitrust Enforcement in the United States” by Professors Lancieri, @ericposner.bsky.social, and Zingales, praising its revelations on the depth of corporate capture while challenging its narrative. www.promarket.org/2024/02/07/t...
promarket.org
The Incredible Shrinking of Non-Cartel Antitrust - ProMarket
Eleanor Fox evaluates "The Political Economy of the Decline of Antitrust Enforcement in the United States" by Professors Lancieri, Posner, and Zingales, praising its revelations on the depth of corpor...
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ProMarket @promarket.bsky.social · 05/02/2024
@sherman1890.bsky.social argues that small businesses and trade associations have historically had more influence over #antitrust policy than big business, often lobbying for less competition and higher prices. www.promarket.org/2024/02/05/t...
promarket.org
The Surprising Culprit Behind Declining US Antitrust Enforcement - ProMarket
In contrast to a recent paper that argues the decline in antitrust enforcement over recent decades is due largely to the political influence of big business, Herbert Hovenkamp argues that small busine...
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ProMarket @promarket.bsky.social · 02/02/2024
Why has antitrust enforcement declined in the US since the 1970s? Our new symposium will discuss findings of @ericposner.bsky.social, Luigi Zingales, and Filippo Lancieri’s paper, “The Political Economy of the Decline of Antitrust Enforcement in the United States.” www.promarket.org/2024/02/02/t...
promarket.org
The Political Economy of the Decline of Antitrust Enforcement in the US - ProMarket
Why has antitrust enforcement declined in the United States since the 1970s? Is it due to the preferences of voters or business influence? In this symposium, Jonathan Baker, Eleanor Fox, and Herbert H...
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Jonathan B. Baker @jbbecon.bsky.social · 04/02/2024
The Antitrust Paradigm is now available in Chinese translation!
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Fiona Scott Morton @proffionasm.bsky.social · 20/01/2024
Herb, I am surprised by your strong statements here. Using your rules we would not investigate pay for delay because pharma is innovative, productivity is high, they patent, they spend on R and D, and we don’t see much collusion “The rate of innovation is high. They spend a lot of money on R&D.
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Jonathan B. Baker @jbbecon.bsky.social · 18/01/2024
Some comments on the JetBlue/Spirit merger opinion. My sense is that DOJ just barely won—the court seemed close to deciding the other way and it came close to inviting the merging firms to try again in the future. Here’s a summary. 1/6
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Steve Salop @stevesalop.bsky.social · 14/01/2024
I have posted on SSRN my My draft article for the RIO symposium on the new Merger Guidelines: "The 2023 Merger Guidelines: A Post-Chicago and Neo-Brandeisian Integration" Comments welcome! papers.ssrn.com/sol3/papers....
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Jonathan B. Baker @jbbecon.bsky.social · 09/01/2024
My comment on the new DOJ/FTC Merger Guidelines: www.promarket.org/2024/01/09/t... It explains that the MGs strengthen merger enforcement by finding common ground between post-Chicago & NeoBrandeisian approaches to reform. It also raises some questions about some details.
promarket.org
The 2023 Merger Guidelines Strengthen Enforcement by Finding Common Ground - ProMarket
Jonathan B. Baker provides his reactions to the final 2023 Merger Guidelines, including why they strengthen enforcement and where the antitrust enforcement agencies can further clarify their merger an...
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Herb Hovenkamp @sherman1890.bsky.social · 03/01/2024
So was big business behind the decline of antitrust enforcement? See the debate between Eric Posner and Jon Baker in the the current Antitrust Law Journal (85 Anti.LJ 441 & 521).
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Herb Hovenkamp @sherman1890.bsky.social · 26/12/2023
Interesting pair of articles in Antitrust Law Journal this morning on the political economy of antitrust decline. Lancieri, Posner, Zingales blaming big business (85 Antitrust L.J. 441), and Jon Baker disputing it (85 Antitrust LJ 521).
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Aviv Nevo @avivnevo.bsky.social · 19/12/2023
Susan Athey and I just posted a note discussing the changes between the 2023 Merger Guidelines and the draft issued this summer.
promarket.org
DOJ and FTC Chief Economists Explain the Changes to the 2023 Merger Guidelines - ProMarket
The Department of Justice Antitrust Division and Federal Trade Commission released their completed version of the new 2023 Merger Guidelines. Susan Athey, Chief Economist for the DOJ Antitrust Divisio...
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Severin Borenstein @severinborenstein.bsky.social · 19/12/2023
USDOT settling with Southwest for $75 coupons over 2022 meltdown is a rookie mistake. That just incentivizes SW to raise price to other flyers, as shown in 1996 paper. Cost to SW is tiny, as is total benefit to customers. apnews.com/article/sout... faculty.haas.berkeley.edu/borenste/dow...
apnews.com
Southwest Airlines reaches $140 million settlement over holiday flight-canceling meltdown last year
Southwest Airlines is paying $140 million to settle a government investigation over a meltdown last holiday season that led to thousands of canceled flights.
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Steve Salop @stevesalop.bsky.social · 17/12/2023
Revised version of Salop & Sturiale - Fixing "Litigating the Fix" (forthcoming Antitrust L.J.) to take Illumina into account. papers.ssrn.com/sol3/papers....
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Jonathan B. Baker @jbbecon.bsky.social · 22/11/2023
For antitrust merger guidelines aficionados: Bilal Sayyed recently interviewed Jim Rill, Paul Denis & me about the drafting of the 1992 Horizontal Merger Guidelines, with an eye toward lessons for today. Here: rethinking-antitrust.simplecast.com/episodes/6-t...
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Jonathan B. Baker @jbbecon.bsky.social · 12/11/2023
Two new papers Just published: “Not a Simple Story of Big Business Capture: An Essay on the Political Economy of Antitrust” ssrn.com/abstract=4497470   Just posted: “Four Industrial Organization Economists:  Tim Bresnahan, Janusz Ordover, Steve Salop, and Bobby Willig” ssrn.com/abstract=4630062
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