Subsidies for clean cookstoves can abate carbon dioxide at only $7 per ton of CO2. We account for issues like imperfect additionality, stove breakage rates, non-usage or low usage by some buyers, and others. Read my article with @joshtdean.bsky.social in Climate Change Economics: lnkd.in/gw8hr9Mu

shot/chaser

Joseph Cox@josephcox.bsky.social · 5d ago

New from 404 Media: Google Earth has introduced an AI feature that lets anyone fabricate completely bullshit satellite images. In our own tests, we added a “bomb blast and crater” to an area of Los Angeles. This is a misinformation time bomb, will 100% be abused www.404media.co/google-earth...

When I heard about this it was hard to believe, but now it's public. The US Administration is planning the full destruction of Optional Practical Training, the US's largest single source of global talent. I wrote about the effects of eviscerating OPT earlier this week: www.piie.com/blogs/realti...

Exclusive | U.S. Weighs $100,000 Fee for Foreign Students Wanting to Work After Graduation

The proposed policy would particularly affect Silicon Valley, Wall Street and universities.

wsj.com

(this is me again) Long story short, the Stata helpdesk did a fantastic job diagnosing the problem. But the gist is - know your regressions - don't use --quietly--

💀

If you were dumb enough to volunteer to teach an undergraduate course on the economics in science fiction and fantasy, where would you start?

With additional PM2.5 data through 1000Z today, I think we can safely say that this is the most impactful wildfire smoke event in recent history -- around 41.3 million people have been exposed to at least one hour of Hazardous PM2.5 & the number of person-hours spent in Hazardous range is now 368.9m

John Voorheis@johnvoorheis.bsky.social · 3w ago

Rough live calculations of impact of the severe #wildfire smoke event as of 13:00 UTC (9AM ET): about 24.7 million people have experienced at least one hour of hazardous PM2.5 (above 225 ug/m3) 201.5 million person hours have been spent in the Hazardous range (US numbers only)

Congrats we just made it impossible to come here for a PhD www.bostonglobe.com/2026/07/16/m...

Trump administration limits student visas to four years, changing longstanding policy - The Boston Globe

The new rule, which also restricts the international students’ ability to transfer schools or change majors without approval in their first year, will go into effect in mid-September.

bostonglobe.com

These are very odd failures! arxiv.org/abs/2211.00241

Please savor the irony of this coming from a rider on a team sponsored by a petrostate.

Pogacar calls for cycling calendar overhaul due to extreme heat

Every day in the first week, riders have temperatures of up to 35°C and at times up to 40°C. Sunday's stage was reduced by 30 kilometers.

lemonde.fr

𝐭𝐢𝐧𝐲𝐩𝐥𝐨𝐭 v0.7.0 now available on CRAN 🎉 This is big release, with loads of new features. Same tiny footprint, though ;-) Short highlight thread below, borrowing examples from our gallery: grantmcdermott.com/tinyplot/vig...

While the U.S. bans some brands of EVs and adds protectionist tariffs, BYD documents 12 min charging at -22C for ~1000km range for city driving. Which legacy US automakers can compete on a level field? What about the free market? 🧪💡🔌☀️💨💧🔋 insideevs.com/news/797182/...

Frozen To -22 Degrees, BYD’s New EV Just Charged To 97% In Only 12 Minutes

The new Denza Z9GT is powered by BYD’s second-generation Blade Battery tech, which makes EV recharging as quick as getting gas.

insideevs.com

It’s official - along with my partner in crime @blakeshaffer.bsky.social I am co- leading the new Electricity Centre at the University of Calgary 🔌⚡️⚡️🔋 m.youtube.com/watch?v=91tn...

Trump fired the BLS chief for allegedly rigging jobs numbers. Cool new paper finds the act of firing her (and the uncertainty it created) likely cost the economy more than the entire annual BLS budget.

Air pollution and internal migration in the US from 2005–2019, from Michael Keller, Christopher R. Knittel, Benjamin Krebs, and Simon Luechinger www.nber.org/papers/w35317

CDOT lost the best of our team yesterday. We're heartbroken. In memory of Riley O'Neil, please refer to these bike racks as "Riley Racks". He led Chicago's bike parking program for several years. Our hearts are broken, but we want to make sure his legacy lives on 💙🚲 Please spread the word

not sure if everyone can access this, but I just learned about some dramatic changes to SSRN from Steve Bainbridge's Substack. This is really bad; SSRN has been how I keep up with scholarship in my field from a variety of researchers www.stephenbainbridge.com/p/the-social...

The Social Science Research Network Has Jumped the Shark

Significant and unwelcome changes to what had been legal academia's major open source scholarly repository and notice system

stephenbainbridge.com

This is one of the most insane things I’ve seen from this regime. Please read this excellent summary and comment in the federal registry. 🧪🌊

elizabethginexi.bsky.social@elizabethginexi.bsky.social · 2mo ago

Summary of Key Changes in OMB’s Proposed Federal Financial Assistance Rule. Russell Vought is going destroy American Science. elizabethginexi.substack.com/p/summary-of...

Remember that recent paper claiming to show that "ideological bias" determined the results obtained by immigration policy research teams? A careful, open-code reanalysis by @kauspurg.bsky.social & Josef Brüderl finds that the result arises from a coding error. —> doi.org/10.31222/osf...

I guess I'm happy the semester is over and I do not have to tell env'l policy students learning about states helping fill the climate policy gaps left by the federal government about this joke. I don't know man, between this and the OMB grants stuff, where are the grown ups? What are we even doing?

Todd Woody@toddwoody.bsky.social · 2mo ago

Breaking: California becomes the latest blue state to retreat on climate goals amid affordability concerns as regulators Friday evening voted to revamp its landmark carbon market to ease costs to the oil industry with $4 billion in incentives. Free link. www.bloomberg.com/news/article...

I've been talking about this with some folks over the past few months and am happy to see @severinborenstein.bsky.social write it up so well. For many places, the status quo is subsidized insurance: taxes ⬇️ when price ⬆️, but not the reverse. energyathaas.wordpress.com/2026/05/18/n...

Is It Time for a Price-Stabilizing Gas Tax?

Spiking petroleum prices from Iran’s closure of the Strait of Hormuz have infuriated politicians across the US and across the political spectrum.  There is nothing state or local politicians can do…

energyathaas.wordpress.com

I have two new papers up in this week's NBER working papers (www.nber.org/papers/w35204 and www.nber.org/papers/w35219). Here's a couple of things I learned in pulling these papers together.

Flood Risk, Insurance, and Housing in the United States

Founded in 1920, the NBER is a private, non-profit, non-partisan organization dedicated to conducting economic research and to disseminating research findings among academics, public policy makers, an...

nber.org

Apropos of some debate on Piketty-Saez-Zucman versus Auten-Splinter brewing again on the other site, let me post my lecture notes that does a deep dive into this, looking at both pre- and post-tax income inequality. Link: www.dropbox.com/scl/fi/4k5gj...

🚨 New paper 🚨 tinyurl.com/6sw833b5 It draws a simple analogy: - Many gov't subsidies are inframarginal (eg EVs, solar) - Some firms use product bundles to capture consumer surplus from (inframarginal) buyers - Could bundled subsidies improve the cost-effectiveness of subsidy programs? A 🧵:

it's true

Catie Hausman@catiehausman.bsky.social · 3mo ago

you guys, the Econ department @williamseconomics.bsky.social is awesome - you should visit if you can. Friendly people who really love economics and want to better understand it together.

My friend is teaching to his Economics Ph.D. students and explaining why they should be interested in topics that are not in their subfield. The friend asked for statements about why learning from other fields is good. Here was my answer: " Five things:

They have! Published version: www.aeaweb.org/articles?id=...

Cool Cities: The Value of Urban Trees

(Forthcoming Article) - As urban populations grow, more people face extreme heat, increasing demand for natural cooling. Urban trees offer various amenities, including cooling benefits, yet their econ...

aeaweb.org

For #NSF and #NIH watchers, Grant Witness now has interactive data on numbers of grants and total funding obligations, broken down by institute and directorate, new awards and non-competitive renewals. The stranglehold on new awards is still a disaster. grant-witness.us/funding_curv...

The “big beautiful bill” greatly expanded SNAP work requirements for parents In my paper with @jasonbcook.bsky.social, forthcoming at JPUBE, we ask what similar, existing requirements do SNAP work requirements for parents deny vulnerable parents SNAP benefits and do not increase their employment

This is the kind of economic illiteracy that has public thinking that energy production ➡️ energy independence. No one cares who you buy from when the price of the tradable good is set by global supply and demand. This article is a perfect exercise in miseducation. www.nytimes.com/interactive/...

Which Countries Depend the Most on Persian Gulf Oil and Gas

Nations thousands of miles away from war are feeling the pain of their energy supplies suddenly vanishing. Some are feeling the loss more acutely than others.

nytimes.com