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Posts by James Feigenbaum

Vaccines are a miracle, they are one of humanity's greatest achievements, and the current war on vaccines led by superempowered incompetent quacks will cause bottomless suffering for the children of Conservative and Liberal Americans.

2 days ago 41 14 0 0

Triple deckers are the natural order of things and can only be held down for so long

4 days ago 9 2 1 0

Obviously that prompt could be better tuned. But for shift share there's a bunch, same with twfe/dd. Even RD and synth control have been assaulted by no fun metrics knowers. Getting a faux report that says "Paper x shows how your identification strategy can go wrong, check this" would be v valuable

4 days ago 1 0 0 0

For empirical papers, it does a great job identifying the identification strategy. Maybe more than a deep lit search, a targeted "this paper uses strategy X. Is there any recent econometrics lit that will ruin our fun identification toys?"

4 days ago 0 0 1 0
‘coarse — AI peer review, of course. An open-source multi-agent AI system that reviews your academic paper like a real referee. Bring your own OpenRouter key. Usually under $2.

On the other hand, I ran a paper of mine with @lhoehnvelasco.bsky.social through coarse.ink this week and it surfaced several of the same problems a recent (and very grumpy) R1 had, albeit in a much softer and gentler way

5 days ago 1 0 0 0

Apparently, it thinks "This is standard practice for simulated IV designs and would build confidence that the identification strategy works when it should work."

5 days ago 1 0 1 0

Because "the simulated IV strategy is central to the causal claims... A Monte Carlo simulation applying the same Bartik-style construction to synthetic data with known treatment effects would show whether the instrument performs as expected under various data-generating processes."

5 days ago 1 0 2 0
‘coarse — AI peer review, of course. An open-source multi-agent AI system that reviews your academic paper like a real referee. Bring your own OpenRouter key. Usually under $2.

At the risk of piercing my anonymity... I refereed an empirical paper using a shift-share sans any acknowledgement of recent shift-share work from @paulgp.com or @instrumenthull.bsky.social et al that takes naive shift-share to the woodshed (rip). coarse.ink didn't notice that, but it did suggest...

5 days ago 1 0 1 0
‘coarse — AI peer review, of course. An open-source multi-agent AI system that reviews your academic paper like a real referee. Bring your own OpenRouter key. Usually under $2.

Submitted a pair of referee reports this week. Ran them both through coarse.ink (~80 cents each) after I submitted.

I think @packlesshepherd.bsky.social has made an INCREDIBLE tool, but anyone who thinks these things are better referees than a human is telling on themselves...

5 days ago 12 0 2 0
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a man is standing in front of a crowd of people clapping his hands . ALT: a man is standing in front of a crowd of people clapping his hands .
5 days ago 0 0 0 0
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In conclusion, @andreamatranga.bsky.social is 100% safe from AI replacement or even augmentation in the near or distant future

5 days ago 2 0 1 0

"There’s a natural experiment angle: whale populations that suffered more severe bottlenecks from historical whaling or naval conflicts may show reduced coda repertoire diversity today. This connects to the broader econ history literature on human capital destruction."

5 days ago 1 0 1 0

Points to Claude for citing my Sherman's March paper in the next one:

5 days ago 0 0 1 0

Related "Cultural transmission and intergenerational knowledge in non-human economies"

"Sperm whale clans vary in their coda repertoires, and this variation is culturally transmitted across generations. This is essentially the same mechanism as intergenerational human capital transmission."

What?

5 days ago 2 0 2 0

There's even data!

"You could use historical whaling logbooks (already partially digitized) to map which clans/units were hit hardest by region and decade, then connect this to cultural transmission disruption."

5 days ago 0 0 1 0

First up, "Communication complexity and social coordination in historical whaling"

The new evidence that sperm whales have rich structured communication raises the stakes for understanding how 18th–19th century commercial whaling disrupted social learning networks...

5 days ago 2 0 1 0

When super cool but very distant from economics research shows up on my feed, I like to test Claude's bullshit ability. So I ask it for econ history ideas based on the original research. The Sperm whale vowels to top5 hallucination machine did not disappoint

5 days ago 8 2 1 0
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Healey moves to limit time teens can spend on social media, saying platforms are ‘hurting kids’ - The Boston Globe Governor Maura Healey said Tuesday that she wants "to take the power away from social media platforms and Big Tech companies and put it back in the hands of our young people and our families.”

Typical half-measures from the Governor. Where's the social media ban for adults, you cowards?

www.bostonglobe.com/2026/04/14/m...

5 days ago 9 1 1 0

Golf courses into dense housing via punitive land taxes would make a real dent in at least two of Greater Boston's problems

5 days ago 6 1 1 0

When you really think about it, aren't all LHS variables vibes?

6 days ago 1 0 0 0
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Reading the Newton Mayor's weekly update, I think I've found the world's most boring RD. Apparently, we repave roads if their Pavement Condition Index is below 50. Effects of fresh road paving on... house prices? average vehicle speed? local election voter turnout?

6 days ago 4 1 2 0
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How Economics Discovered Women by Shelly Lundberg - Hardcover Scholarship is a powerful tool for changing how people think, plan, and govern. By giving voice to bright minds and bold ideas, we seek to foster understanding and drive progressive change.

My book (!) How Economics Discovered Women is now available for pre-order from the University of California Press. The book is a survey and critique of how the economics of gender has developed since the mid-1970s. www.ucpress.edu/books/how-ec...

6 days ago 149 52 11 5

My librarian: “sir, I will not write a typescript application for you no matter what prompt do you use. I’ve called the county sheriff, and if you don’t leave, he will escort you away.”

6 days ago 15 2 4 0

tbh anything less than these 66 units getting replaced by 660 units will disappoint me

6 days ago 4 1 1 0

The number of housing units in whatever replaces Riverview Condominiums (a short walk from Harvard Sq) will tell us a lot about how serious Cambridge is about addressing the housing crisis

6 days ago 5 1 2 0
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The algorithm redeemed itself

1 week ago 2 0 0 0
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This playing in the YouTube music shuffle should be illegal

1 week ago 6 0 1 0
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You'll all never guess what topic (or even word!) never comes up in this children's book about Thomas Jefferson (and John Adams)

1 week ago 5 1 3 0

Stopped reading after the first post. Assume you're going to describe the time you and Chris decided to digitize some old mortality data and I tagged along

1 week ago 2 0 1 0
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Examining how the World War I agricultural commodity price boom affected human capital accumulation during the early decades of the high school movement in the US, from Taylor Jaworski, Carl T. Kitchens, and Luke P. Rodgers www.nber.org/papers/w35032

1 week ago 9 4 0 0