JW Mason
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jwmason.bsky.social
JW Mason
@jwmason.bsky.social
Associate professor of economics, John Jay College-CUNY, senior fellow at the Groundwork Collaborative. Blog and other writing: jwmason.org. Study economics with me: https://johnjayeconomics.org. Anti-war Keynesian, liberal socialist, Brooklyn dad.
Lovely Thanksgiving dinner at @thomasherndon.bsky.social’s place. That man does know his way around a grill.
November 28, 2025 at 3:19 AM
Reposted by JW Mason
this is a fantastic piece by @jwmason.bsky.social, not just about the jobs report but about how economic reporting and analysis actually works. I learnt a lot! jwmason.org/slackwire/at...
At Groundwork: Lessons from the September Jobs Report – J. W. Mason
jwmason.org
November 27, 2025 at 9:31 PM
Happy Thanksgiving to everyone for whom it's Thanksgiving.
November 27, 2025 at 8:37 PM
Even worse than it seems, given that Irish GDP figures are essentially meaningless.
On the surface, Eurozone growth looks pretty decent all things considered. But when looking under the hood, the picture worsens considerably:

- Ireland (4% of the EZ) accounts for 40% of growth
- Spain (10%) accounts for 20%
- Half of the Eurozone is growing at 0.5% or below
November 27, 2025 at 8:32 PM
Reposted by JW Mason
Very pleased with my submission "No True Strawman" and am sharing it here

(with apologies to true Scotsmen and other fallacy-purists)
Anyway, the world does not need another post dunking on Josh Barro. What it does need, is a word for the fallacy where you make up some weird stereotype about people, and then when it turns out they don't actually act that way, you think that's something strange about *them*.
November 27, 2025 at 2:07 PM
This fallacy should henceforth be known as a Barro's Blunder.
Anyway, the world does not need another post dunking on Josh Barro. What it does need, is a word for the fallacy where you make up some weird stereotype about people, and then when it turns out they don't actually act that way, you think that's something strange about *them*.
November 26, 2025 at 10:47 PM
Reposted by JW Mason
Here is a handy summary of the literature on the various margins from the latest Handbook of Labor Economics by @arindube.bsky.social & Attila Lindner for reference:
November 26, 2025 at 11:24 AM
I had a regular poker game for a while. Everybody in it was some flavor of socialist.
what?
November 26, 2025 at 10:04 PM
Reposted by JW Mason
God this is so depressing given the political response to it
"the economic response to the pandemic really worked. Indeed, there is a good case that it was the most successful example of countercyclical policy in US history." jwmason.org/slackwire/at...
At Groundwork: Lessons from the September Jobs Report – J. W. Mason
jwmason.org
November 26, 2025 at 9:34 PM
My post on the latest jobs data included a discussion of the economy's stall speed. Afterward I received a fascinating note about the aerodynamics of airplane stalls, which turn out to be a better metaphor for business cycles than I realized. I've shared it on my blog. jwmason.org/slackwire/a-...
A Note on Stall Speed – J. W. Mason
jwmason.org
November 26, 2025 at 9:58 PM
Reposted by JW Mason
"the economic response to the pandemic really worked. Indeed, there is a good case that it was the most successful example of countercyclical policy in US history." jwmason.org/slackwire/at...
At Groundwork: Lessons from the September Jobs Report – J. W. Mason
jwmason.org
November 26, 2025 at 6:07 PM
It's like Rachel Reeves is moonlighting in the Trump administration.
National parks have SO MANY people from other countries (since they get real vacations!)

And they spend a lot of money on hotels, food, souvenirs, etc.

This is unbelievably dumb, it will destroy entire tourist towns
November 26, 2025 at 4:24 AM
Reposted by JW Mason
The September jobs report tells 3 key stories:

✅ Pandemic fiscal response was a historic success
⚠️ Weakening labor market is widening inequality
🚨 Recession warnings are flashing

From @groundwork.bsky.social Senior Fellow @jwmason.bsky.social 🧵

groundworkcollaborative.org/news/the-sep...
The September Jobs Report: Evidence of Past Success, and of Dangers Ahead - Groundwork Collaborative
groundworkcollaborative.org
November 26, 2025 at 2:24 AM
Are these really nuclear takes? I guess some people might be dogmatic about using ggplot for everything. But are there people who don't use <-?

Honestly I don't know. I'm not a very technical boy.
R nuclear takes:

-rm(list=ls()) is fine

-notebooks are better for most analysis because you get inline tables and graphs

-base plot is better for simple working graphs (ggplot is for the actual pub version)

- <- is not only fine but better and it's just as keystroke efficient if done right
November 26, 2025 at 12:14 AM
The problem is precisely that this is not true. Not-garbage always takes work.
I think Madrigal's claim is wrong because a) it overstates the average quality of shit people see online already, and b) the cost of making not-garbage is going to zero right along with the cost of making garbage
November 25, 2025 at 11:56 PM
My hope is that going forward, I will be doing these sorts of posts more regularly for Groundwork around macro data releases.
November 25, 2025 at 9:24 PM
I have a new post up at Groundwork, on some takeaways from the (much-delayed) September jobs numbers. groundworkcollaborative.org/news/the-sep...
The September Jobs Report: Evidence of Past Success, and of Dangers Ahead - Groundwork Collaborative
groundworkcollaborative.org
November 25, 2025 at 9:08 PM
There are three (3) current or former students in the John jay economics MA program on the Zohran transition team.

Studying economics at John Jay does not guarantee that you'll play a leading role in building the next wave of municipal socialism. But it sure seems to improve your odds.
November 25, 2025 at 3:27 PM
Reposted by JW Mason
Really wish more people understood this. Having to interact with the awful guy with more authority than you isn't a betrayal *or* some 3D chess move, it's just a necessity if you want to do your job effectively, and that's as true for progressive politicians as it is for liberal ones.
A simpler and more plausible explanation for the meeting is tactical: The federal government can make things difficult for NYC in many ways, and if the new mayor is going to deliver on his agenda he needs to try to limit how much Trump is actively trying to wreck it.
Matt Stoller: “..Trump & Mamdani defeated establishment in their own way, representing hunger of voters on the right & left who want something different. If those sides cd come together.. that would be a sea change in how we organize our political economy”.

www.thebignewsletter.com/p/monopoly-r...
November 25, 2025 at 10:43 AM
A simpler and more plausible explanation for the meeting is tactical: The federal government can make things difficult for NYC in many ways, and if the new mayor is going to deliver on his agenda he needs to try to limit how much Trump is actively trying to wreck it.
Matt Stoller: “..Trump & Mamdani defeated establishment in their own way, representing hunger of voters on the right & left who want something different. If those sides cd come together.. that would be a sea change in how we organize our political economy”.

www.thebignewsletter.com/p/monopoly-r...
Monopoly Round-Up: Why the Establishment Freaked Out Over a Mamdani-Trump Press Conference
Meta wins its antitrust case, there are now two fire truck antitrust claims, the stock market got wobbly, and Larry Summers was exiled from the establishment, at least for now.
www.thebignewsletter.com
November 24, 2025 at 3:53 PM
Should we expect stock prices to rise by another 280 percent, like, immediately? Sure why not. www.ft.com/content/a7f1...
November 24, 2025 at 2:25 PM
That is what it looks like, yes. Which should be our starting point for wondering if there is something deeper going on. youngvulgarian.substack.com
November 21, 2025 at 6:05 PM
This outstanding essay by @itsmccarthy.bsky.social in Hammer and Hope captures a frustration that I have long felt with a certain strand of left opinion-makers. hammerandhope.org/article/iden...
November 21, 2025 at 1:15 PM
Correct.
He won because he combined economic populist demands — rent freezes, universal child care, fast and free buses, municipally operated grocery stores to curtail inflation — with explicit solidarity with Palestine, immigrant communities, and New York’s most marginalized residents.
November 21, 2025 at 2:56 AM
Even at Harvard, the kids are all right.
Larry Summers’s co-teacher at Harvard:

“We will miss his insights and his wisdom”

Student:

“NO WE WON’T”

dude pretends he doesn’t hear, then intros Tony Blair lmao
November 21, 2025 at 2:55 AM