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Keith Head

@ckhead.bsky.social
134 followers 128 following 69 posts

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Reposted by Keith Head
Gina Hinojosa @ginafortexas.bsky.social · 15/05/2026
2026 is the year we're going to make change in Texas. But I need every single one of you in this fight with us. Text TEXAS to 80191 or visit ginafortexas.com to join our campaign.
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Phillips OBrien @phillipspobrien.bsky.social · 06/03/2026
So Trump rolls out the red carpet for Putin, protects Putin, bullies the Ukrainians for Putin, and in return Putin helps Iranians kill Americans. Trump must act now or the case for him being a Russian asset of some type will be undeniable.
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Kevin Hjortshøj O’Rourke @kevinhorourke.eurosky.social · 19/01/2026
What Trump is threatening to do on tariffs -- what he has already done! -- is completely illegal under the GATT/WTO. By signing the disgraceful Turnberry deal which was also illegal, the EU was helping to destroy the rule-based order. For that reason alone it should not be allowed to resurface.
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Emanuel Ornelas @emanuelornelas.bsky.social · 19/01/2026
and yet some escalation would actually be positive, or else the threats (and actions) will get worse. That's how bullies operate. We (@julianhi.nz @ckhead.bsky.social @schularick.bsky.social & I. Méjean) made this point in July, and it only got worse since then: www.kielinstitut.de/publications...
kielinstitut.de
An Alliance for Open Trade: How to Counter Trump’s Tariffs - Kiel Institute
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Keith Head @ckhead.bsky.social · 29/12/2025
This is so depressing
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Reposted by Keith Head
Anne Applebaum @anneapplebaum.wsocial.eu · 27/11/2025
The war will end when Russia stops fighting. Therefore, pressure has to be put on Russia, so that they stop believing that they will win. Why is that so hard to understand?
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Keith Head @ckhead.bsky.social · 14/11/2025
the way we think about is that historical borders limited mobility and this generated social networks with relatively few cross-border links. but all the legal/frontier barriers are gone in EU. so we want to est. a partial effect of borders conditional on the social network legacies. open to ideas.
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Keith Head @ckhead.bsky.social · 14/11/2025
These are good points to keep in mind. What would you suggest? The thing we want to estimate is the part of the border effect that government policy can reduce. There are no current regulations that limit cross-border friendship in Schengen EU.
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Keith Head @ckhead.bsky.social · 13/11/2025
cepr.org/voxeu/column...
cepr.org
No, the EU does not impose a 45% tariff on itself
A recent paper which has gathered significant attention estimates a 45% tariff equivalent of intra-EU border costs. This column argues that this estimate is likely too high and depends on the particular dataset used and specific estimation choices. Therefore, it also vastly overstates the barriers that are akin to tariffs and could be lowered as a result of European Commission policy decisions. Instead, it argues that there are more urgent reforms with larger potential benefits, such as boosting EU innovation capacity and R&D spending.
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Mark Hamill @markhamillofficial.bsky.social · 27/10/2025
I have a very bad feeling about this...
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Aaron Sojourner @aaronsojourner.org · 10/10/2025
MIT holds the line bsky.app/profile/dyna...
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Prof Dynarski @dynarski.bsky.social · 10/10/2025
This Beaver is super proud of her alma mater www.nytimes.com/2025/10/10/u...
nytimes.com
M.I.T. Rejects a White House Offer for Special Funding Treatment
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Reuters @reuters.com · 10/10/2025
MIT refuses to accept White House terms for funding, other schools still mulling reut.rs/471tkNZ
reut.rs
MIT refuses to accept White House terms for funding, other schools still mulling
Massachusetts Institute of Technology President Sally Kornbluth on Friday said she "cannot support" a memo that the White House sent to nine elite U.S. universities last week detailing policies they should follow to get preferential consideration for federal funding.
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Zeke Emanuel, MD, PhD @zekeemanuel.bsky.social · 10/10/2025
RFK Jr.'s claim that vaccines didn't save lives, sanitation did, is half right—and dangerously wrong. While sanitation helped in the early 20th century, vaccines saved millions of lives in the later 20th century and reduced severe impairments like brain damage. More in @statnews.com
statnews.com
RFK Jr. says vaccines don’t save lives. He’s wrong
Now RFK Jr. is claiming vaccines don’t actually save lives. Here’s the math to show what he gets wrong.
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Reposted by Keith Head
Paul Goldsmith-Pinkham @paulgp.com · 08/10/2025
Posted a short blog post with updated data (and public repo with data) of current state of Econ job market: paulgp.com/2025/10/08/j...
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Laura Helmuth @laurahelmuth.bsky.social · 08/10/2025
Six of the nine Nobel Prize winners this year work in the U.S. Three of the six were born outside the U.S., which is the pattern most years. No country has benefited more from welcoming immigrants from around the world. www.nobelprize.org
nobelprize.org
The official website of the Nobel Prize - NobelPrize.org
The Nobel Prize rewards science, humanism and peace efforts. This is one of the central concepts in the will of Alfred Nobel, and it also permeates the outreach activities that have been developed for...
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Keith Head @ckhead.bsky.social · 20/09/2025
I would go back to X more often if you guaranteed lots of yelling at Matt Stoller.
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Carl T. Bergstrom @carlbergstrom.com · 20/09/2025
I cannot overstate how remarkable it is that under GOP rule, US federal health regulations have been captured by fringe crackpots who espouse views that the vast majority of the US public—and nearly 100% of health professionals—reject. Gift link:
nytimes.com
Kennedy’s Vaccine Panel Votes to Limit Access to Covid Shots
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Keith Head @ckhead.bsky.social · 14/09/2025
Beauman is the son of Persephone Books founder Nicola Beauman and economist Christopher Beauman
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Joey Politano🏳️‍🌈 @josephpolitano.bsky.social · 05/09/2025
Trying to explain why international trade is good to an American: okay so imagine a burger (yes this is a real ad on the Canadian embassy in DC)
A picture of the Canadian embassy ad saying “we make great burgers together!” with a picture of a burger and an ad saying “we make great planes together!” with a picture of a F-35 c
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Catherine Rampell @crampell.bsky.social · 03/09/2025
Florida moves to end vaccine mandates to attend school, the first state to do so. So many own goals across America right now. www.miamiherald.com/news/politic...
miamiherald.com
DeSantis and Ladapo to ‘end all vaccine mandates in Florida law’
Florida Surgeon General Joseph Ladapo announced the move in Hillsborough County on Wednesday.
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Zeke Emanuel, MD, PhD @zekeemanuel.bsky.social · 03/09/2025
Because of Florida's decision to phase out childhood vaccine mandates, many will die of preventable diseases like measles, chickenpox, tetanus, and diphtheria. This is regressive, bringing us back to the early 1950s when parents had to worry that their kids might die from diseases like polio.
statnews.com
Florida will work to eliminate all childhood vaccine mandates in the state, officials say
Florida will work to phase out all childhood vaccine mandates in the state, building on the effort by Republican Gov. Ron DeSantis to curb vaccine requirements and other health mandates during the Cov...
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Keith Head @ckhead.bsky.social · 01/09/2025
The study does not randomize birth control method. So I think it’s rather hard to control for selection effects.
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Keith Head @ckhead.bsky.social · 01/09/2025
Who’s Pickle?
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Reposted by Keith Head
Carl T. Bergstrom @carlbergstrom.com · 01/09/2025
Nine former CDC directors, from Bill Foege onward, speak out about the incalculable harm that RFK, Jr. is doing to public health in the US and around the world. Gift link.
nytimes.com
Opinion | We Ran the C.D.C.: Kennedy Is Endangering Every American’s Health
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Keith Head @ckhead.bsky.social · 31/08/2025
Football pundits agree! The only thing worse than VAR is not having VAR. ( see Rayo Vallecano vs Barcelona)
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Keith Head @ckhead.bsky.social · 31/08/2025
Why is everything on the 45 line? Ostensibly 2 dimensions but de facto only one?
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Reposted by Keith Head
Justin Wolfers @justinwolfers.bsky.social · 30/08/2025
Back-to-school reminder: The market rewards education Average earnings: High school dropout | ### ($35k) High school grad | ##### ($47k) College degree | ######### ($87k) Masters degree | ########### ($106k) Professional degree | ##################($184k)
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Simon Lester @simonlester.com · 29/08/2025
Doesn't everyone feel overburdened with mitochondrial challenges at the airport though? Those TSA procedures are tough these days.
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Keith Head @ckhead.bsky.social · 28/08/2025
it's not for me to say what others should do with their careers, but economists thinking of quitting the Trump admin might want to time their departures to reinforce this collapse narrative.
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Keith Head @ckhead.bsky.social · 28/08/2025
www.slowboring.com/p/waning-day...
slowboring.com
Waning days of a dying empire
Is this what collapse looks like from the inside?
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April Sharp, MD @ansharp.bsky.social · 28/08/2025
Firing RFK Jr would unburden a lot of overworked mitochondria in this country
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Keith Head @ckhead.bsky.social · 28/08/2025
How do you track what is actually implemented?
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Keith Head @ckhead.bsky.social · 23/08/2025
This is the reasonable conclusion. But why doesn’t Trump just come out and say so? He’s generally not that shy about declaring his stances.
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Keith Head @ckhead.bsky.social · 23/08/2025
“Whom does it help?” Should be a core question of government policy. This administration seems more likely to ask “who can I spite? Whose timidity can I exploit?”
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Reposted by Keith Head
Phillips OBrien @phillipspobrien.bsky.social · 20/08/2025
I’m sorry to say but the claim that the US under Trump is going to provide Ukraine with militarily enforced security guarantees, is simply the newest version of the Trump will hit Russia hard with sanctions delusion. Neither will ever happen, but if it makes you feel better….
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Keith Head @ckhead.bsky.social · 16/08/2025
"Arm Ukraine, expand sanctions, stop the lethal drone swarms, break the Russian economy, and win the war. Then there will be peace."
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Keith Head @ckhead.bsky.social · 16/08/2025
"It was determined by all..."
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Keith Head @ckhead.bsky.social · 12/08/2025
The Trump 2 cabinet has so many weirdos
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Keith Head @ckhead.bsky.social · 11/08/2025
Do they explain their method? Whole academic papers devoted to this question.
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Reposted by Keith Head
Douglas Irwin @douglasirwin.bsky.social · 11/08/2025
The US Constitution forbids export taxes but I guess this payment isn't a "tax" but a payout....🤔 www.nytimes.com/2025/08/10/t...
nytimes.com
U.S. Government to Take Cut of Nvidia and AMD A.I. Chip Sales to China
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Keith Head @ckhead.bsky.social · 09/08/2025
Where do those 15, 15, 70 numbers come from? I think you said “Wall street friends”?
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Keith Head @ckhead.bsky.social · 09/08/2025
I don’t think PDF were designed for phones; nor were phones designed for reading academic papers. Remarkable is good for that.
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Keith Head @ckhead.bsky.social · 09/08/2025
I quite like PDF.
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Keith Head @ckhead.bsky.social · 04/08/2025
The worst part, Will, is that he overlapped with us at Swarthmore…how did he end up at this point?
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Keith Head @ckhead.bsky.social · 03/08/2025
I thought the same thing but I do expect some lock-in effects. After all even before Trump we still had 25% tariffs from the Chicken war of 1964
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Keith Head @ckhead.bsky.social · 03/08/2025
most anti-nuclear arguments are unpersuasive (where to put the waste? what about Chernobyl?) but the high cost issue is harder to dismiss www.ft.com/content/5f54...
ft.com
Sizewell C costs could hit £100bn including financing, modelling shows
Total for nuclear power station project set to be billions of pounds higher than official government estimates
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Chris Hayes @chrislhayes.bsky.social · 01/08/2025
Lemme just say if President Bernie Sanders had unilaterally imposed, by executive fiat, hundreds of billions of new taxes, personally browbeat executives about job cuts and investments and then fired the head of BLS, the Chamber of Commerce and the business orgs would not be sitting idly by.
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Nicholas A. Christakis @nachristakis.bsky.social · 02/08/2025
Only a flop nation fails to support its brilliant, world-leading mathematicians.
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