Ioana Marinescu

Monopsony Power in the Labor Market: From Theory to Policy Labor markets are not perfectly competitive: Monopsony power enables employers to pay workers less than the marginal revenue product of labor. We review three theoretical frameworks explaining monopso...

The conversation is based on my paper here: www.annualreviews.org/content/jour...

Listen to our conversation on competition and #monopsony in the labor market, and the #antitrust policy implications. I had a lot of fun talking to David Fisher from AAI, like we had to cut out some of the laughing 🤭. I hope you enjoy it as much as we did!
www.antitrustinstitute.org/work-product...

Nice to see our work covered here 👇

Congratulations to my mentor and co-author Philippe Aghion!!!! His broad contributions to economics and boundless creative energy are truly inspiring.

AI Acquihires: Competition Risks, Talent Battles and Economic Spillovers Webinar - 8 October @ 17:00 CEST

🗣️Jonathan Kanter @lugaricano.bsky.social @imarinescu.bsky.social @igorletina.bsky.social Hans Zenger

Moderator: @florianederer.bsky.social
Register: cepr.org/events/ai-ac...
#EconSky

Some context: I used to ask “what are you working on?” but I learned some people would rather not talk about it for various reasons. So the more general “what are you excited about in your field?” lets them EITHER talk about what they’re working on or some other interest.

Fellow economists, what kind of question would you most like to be asked when meeting someone at a conference? #EconSky
1. What are your working on?
2. What is your field?
3. What is exciting in your field?
4. Other: spill the beans!

Common Ownership and Employee Earnings * José Azar Xin Dai Yue Qiu Aaron Sojourner September 15, 2025 Abstract Using administrative data in the manufacturing sector from the U.S. Census Bureau, this paper provides the first evidence on the effect of common ownership on employee earnings. Using firms’ additions to the S&P 500 index as a shock to their local competitors’ common ownership, we find that, after a same-industry competitor enters the S&P 500 index, the average employee earnings of S&P 500 incumbents in the same local labor market decrease. Additionally, these firms’ employment increases. These findings are inconsistent with the canonical oligopsony models but our generalized model of oligopsony incorporating a recruitment intensity margin can rationalize them

Common Ownership & Employee Earnings
updated & improved

Consider a pair of companies that sell into the same product market. If pair shares common owners, the owners have incentive for pair to soften competition.

Same with local labor market competition
papers.ssrn.com/sol3/papers....

Anthropic Economic Futures A multidisciplinary program funding research grants, policy development, and data infrastructure to help society understand and navigate AI's economic transformation.

Proud to support @anthropic.com’s new Economic Futures Program as a member of their Economic Advisory Council!
• Research grants up to $50,000 (rolling basis)
• Policy proposal competition
• Expanded Economic Index data access
Apply: www.anthropic.com/economic-futures
#AI #EconSky

Also see this: bsky.app/profile/prof...

There are no homogeneous blocks but loose webs of ideas and those in power pick and choose depending on the interests of the moment. Having a stronger broader web of ideas that have been tested through intellectual debate is useful.

“Us vs. them” mentality is not the way to intellectual progress nor to a healthy democratic debate.👇

Very excited that our paper (joint with Jarkko Harju and ‪@schoefer.bsky.social‬) on "Voice at Work" is published in the American Economic Journal: Applied Economics. We study what happened when workers in Finnish firms got a right to worker voice on the corporate board. 👇

🧨 New draft dropped:🧨
"Cash Transfers,
Mental Health and Agency:
Evidence from an RCT in Germany"
maxkasy.github.io/home/files/p...

Companion paper to our paper on basic income and labor supply.
Corresponding author Freddie Schwerter (@freddieschwerter.bsky.social).
#basicincome #UBI

More Americans Staying On Unemployment Amid ‘Slight Slowdown’ Of Economy Losses in service jobs sparked the first negative job growth in two years.

Yes, continuing unemployment claims are up, but the US labor market remains remarkably stable across most indicators in 2025. Context matters: this is a slight softening, not a crisis. My analysis in @Forbes.com explains the full picture www.forbes.com/sites/zachar... #EconSky​​​​​​​​​​​​​​​​

Gov. Josh Shapiro said he’s not sure SNAP will be able to exist in Pa. under President Trump’s megabill Pennsylvania won't be able afford the cost of federal food assistance if Trump's tax and spending plan becomes reality, Shapiro said.

Huge sleeper issue is how states will (or won’t) be able to absorb huge SNAP cuts in BBB. www.inquirer.com/politics/pen...

The report looks strong. The Powell attack was disconnected.

+147K jobs gained last month (mid-May to mid-June).
+16K jobs in revisions of prior 2 months

The big picture

EXTREMELY BAD NEWS for economic research, per former BLS Commissioner @ericagroshen.bsky.social on LinkedIn.

BLS is suspending access to its restricted data "for the forseeable future." Applies to projects through the Federal Statistical Research Data Centers & onsite projects with BLS.
#EconSky

So excited to witness the opening of a new pedestrian bridge in Philadelphia!!! This was a special preview event and the official opening is on Saturday: schuylkillbanks.org. #Philly proud!

JM update: it's been a while that I should have announced here that this summer I'll join @upenn.edu
as a postdoc working with @imarinescu.bsky.social . I really look forward to it and I am immensely grateful to my letter writers for support on this #econjobmarket !

Thanks Daniel!

Anthropic Economic Index Understanding AI’s effects on the economy over time

The Council will help inform help inform the Anthropic Economic Index, which you can download for free to better understand how #AI is used in various jobs. Download here #EconSky: www.anthropic.com/economic-ind...

Introducing the Anthropic Economic Advisory Council Today, we’re announcing the formation of the Anthropic Economic Advisory Council, a group of distinguished economists who will provide Anthropic with expert guidance on the economic implications of AI...

I’m excited to join @Anthropic.com’s Advisory Council, to provide guidance on the economic implications of #AI. I’m thrilled to be part of this illustrious group, including @johnjhorton.bsky.social @akorinek.bsky.social @johnlist.bsky.social. #EconSky www.anthropic.com/news/introdu...

Google Is a Monopolist in Online Advertising Tech, Judge Says The ruling was the second time in a year that a federal court had found that Google had acted illegally to maintain its dominance.

Breaking News: Google acted illegally to maintain a monopoly in some online advertising technology, a federal judge ruled.

Registration for the @cleforum.bsky.social conference (April 25 & 26 in Toronto, in partnership with @stone-centre-ubc.bsky.social ) open until April 15. Join us for a keynote lecture by @imarinescu.bsky.social and papers on wide variety of labour topics: stonecentre.economics.ubc.ca/call-for-pap...

If you do this since 1929, it's even worse.

Today was worse than 99.6% of trading days since 1929. It was the 95th worst day of all time (out of >24,000 days), and the 35th worst day since 1945.

The Stone Centre is proud to be a sponsor of the upcoming @cleforum.bsky.social conference, featuring presentations from @imarinescu.bsky.social, Stone Centre Director, Thomas Lemieux, and many others. Registration is now open: stonecentre.economics.ubc.ca/news-and-eve...

Reminder: you have until March 31 to apply for this #AI funding opportunity, Looking forward to reading your proposals! #EconSky 👇

😂 I didn’t know Brooks was THAT unpopular. Your choice, kid!

Opinion | David Brooks on Why the Democrats Are Losing to Trump (Gift Article) The columnist shares his thoughts on Donald Trump’s second term.

🎁 gift link to article: www.nytimes.com/2025/03/06/o...