🚨Seeking pre-doctoral research fellow in environmental economics at UC Berkeley (summer/fall 2026) 🚨 👉 workforcenow.adp.com/mascsr/defau... 🌎Research pollution, trade, water, labor, climate, machine learning, energy, health... 💡Predoc community with mentoring/training ✳️Please r/t, apply!

🚨New paper🚨 Understanding Support for Inefficient Environmental Policy Instruments Why do governments use costly enviro standards, not more efficient pollution taxes or cap & trade? Voters misunderstand some economic principles joseph-s-shapiro.com/research/Env... 1/🧵

Ex ante deep learning dramatically outperforms geophysical models of proposed Clean Water Act reforms. The Supreme Court's 2023 Sackett case deregulates many streams and wetlands, from Simon Greenhill, Brant J. Walker, and @joseph-s-shapiro.bsky.social www.nber.org/papers/w34947

Excited for #ASSA2026 session on Spatial Environmental Economics!🌍Sat 10:15am Migration climate trade floods ...🧭 Amazing group: TCarleton BStaiger @allanhsiao.bsky.social @johannesmboehm.bsky.social @bsprungkeyser.bsky.social @jmcolmer.bsky.social SKortum @constanzaabuin.bsky.social IRudik

Cool new AER paper uses data from Clean Air Act offset markets to assess the efficiency of air pollution regulation. The analysis finds that marginal benefits of abatement exceed mean offset prices more than ten-fold, across most regions and pollutants.

Excited to see our paper in print! 'Is Air Pollution Regulation Too Lenient? Evidence from US Offset Markets.' www.aeaweb.org/articles?id=...

Stunning chart from a great paper by @joseph-s-shapiro.bsky.social: the IRA’s “leasing loophole” - which let foreign-made EVs qualify for tax credits - sent US leasing numbers soaring. EU exporters were likely among the main winners - and will be among the first to feel the hit as the IRA unravels.

🚨 Call for papers: Environment week at LSE will be Sept 22-25th. Submissions are due soon (July 14)! www.lse-environment-week.com/environment-...

Is US air pollution regulation too lenient? 🏭💸 We find marginal benefits of pollution control exceed marginal costs by >10×. New evidence from dozens of US pollution offset markets. 📄forthcoming at AER, w/ Reed Walker: joseph-s-shapiro.com/research/IsA... 1/🧵

Forthcoming in the AER: "Is Air Pollution Regulation Too Lenient? Evidence from US Offset Markets" by Joseph S. Shapiro and Reed Walker. www.aeaweb.org/articles?id=...

Just published in @jpube.bsky.social: "Cleaner water and higher housing prices: Evidence from China" By Run Ge, Jialin Huang, & Xinzheng Shi www.sciencedirect.com/science/arti... #econsky

🌎 PhD students: apply to 2025 Berkeley/Sloan Summer School in Environmental/Energy Economics! 🔗 Info + application: www.auffhammer.com/summer-school 📅 Deadline: May 14 | Program: Aug 18–22 at Berkeley w @auffhammer.bsky.social @severinborenstein.bsky.social, TCarleton, MFowlie, KJack...

🌍 Free 1hr webinar today: Globalization & The Environment 📅 Apr 2, 6pm PT US | Apr 3, noon Australia 🔗https://esacentral.org.au/event/58402/globalization-and-the-environment-online-only - How globalization affects the enviro - How enviro policy reshapes trade Host: Economic Society of Australia

Looking forward to this, especially the lunchtime panel I get to do with @kylemeng.com and @chadbown.bsky.social!

🚨Incredible lineup at @nber.org conference this Thurs/Fri 3/20-21: **Energy Markets, Decarbonization, and Trade** 📑Agenda www.nber.org/conferences/... 🎥 Webstream www.youtube.com/nbervideos Organized w Natalia Ramondo, supported by @sloanfoundation.bsky.social

1/🚨New chapter in Handbook of Regional & Urban Economics: Spatial Environmental Economics 🌍 How do spatial forces affect the environment? How does enviro shape spatial outcomes? Thread, chapter explore this nascent subfield via stylized acts, models, building blocks for rsrch. w Clare Balboni.

Excited for Fri's #ASSA2025 8am New Frontiers in Environmental Economics! 🌐 www.aeaweb.org/conference/2... 🗺️ Room: Parc 55, Cyril Magnin 2 🔥 Trade, food, land, clean energy, bunching, air poll., MVPF, etc w @bsprungkeyser.bsky.social @wolframschlenker.bsky.social @mattkahn1966.bsky.social et al

Exciting morning--our work on electric vehicles and the Inflation Reduction Act is the lead front page NYT story, paragraph 2: www.nytimes.com/2024/11/25/b...

Funny how words shape perception. I called our research finding that repealing Inflation Reduction Act subsidies would cut EV sales by 27% 'not trivial.' Yahoo Finance called it 'massive.' Same number, opposite vibes. finance.yahoo.com/news/not-tri...

Much media interest today in how repealing electric vehicle tax credits under the Inflation Reduction Act will affect EV sales e.g. www.bloomberg.com/news/article... One estimate: 27 percent decrease in sales relative to counterfactual, from Table 5 of joseph-s-shapiro.com/research/EVT...

@voxdev.bsky.social article! Strengthening a country's institutions improves domestic environmental air and water quality through comparative advantage. My recent experience: twitter massively penalizes external media links. Testing here if bsky works better at that. voxdev.org/topic/energy...

US solar stocks tanked 12-50% on election news.📉 Stark reminder, policy powers clean energy markets.

How have Inflation Reduction Act electric vehicle subsidies affected the environment and the economy? Our free public webinar tomorrow (Fri) 930am PT discusses. Webinar signup: berkeley.zoom.us/webinar/regi... Paper link: joseph-s-shapiro.com/research/EVT...

🚨New paper🚨 Effects of “Buy American”: Electric Vehicles and the Inflation Reduction Act Summary: IRA EV credits probably benefit US, not home run Paper joseph-s-shapiro.com/research/EVT... NYT nytimes.com/2024/10/07/b... w/ HuntAllcott, ReignerKane, maxmaydanchik, FelixTintelnot

Which rivers and wetlands does the Clean Water Act regulate? Depends who's in White House and on Supreme Court. New in Science (my first research article there!) www.science.org/doi/10.1126/... we use machine learning to predict what Clean Water Act protects. With star econ/CS/enviro coauthors

🚨New Paper Alert!🚨 US drinking water earmarks target low-income, Black, Hispanic communities.🌊 Important b/c earmarks are criticized for targeting wealthy/politically connected communities. 💧 Drinking water important esp. due to Flint MI. www.nber.org/papers/w3205...

See Fri #ASSA2024 P&P session on 'New Frontiers in Environmental Econ'! Thrilled to join Tamma Carleton, @allanhsiao.bsky.social, Reed Walker, Adrien Bilal, Doug Almond, @hernandezcortes.bsky.social, Juanma Castro Vincenzi Details: aeaweb.org/conference/2...

🚨Seeking pre-doctoral research fellow in environmental economics (summer/fall 2024) 🚨 👉 tinyurl.com/cvjzufsk 🌎Research pollution, trade, water, labor, climate, machine learning, energy, health... 💡Predoc community with mentoring/training ✳️Please r/t, apply! (first ever bluesky post here!)