Joseph Shapiro
@joseph-s-shapiro.bsky.social
Econ prof: environmental/energy, trade, public, health econ.
Reposted by Joseph Shapiro
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.
September 18, 2025 at 3:25 PM
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=...
August 28, 2025 at 1:45 PM
Excited to see our paper in print! 'Is Air Pollution Regulation Too Lenient? Evidence from US Offset Markets.' www.aeaweb.org/articles?id=...
Reposted by Joseph Shapiro
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.
EU exporters were likely among the main winners - and will be among the first to feel the hit as the IRA unravels.
August 6, 2025 at 9:04 AM
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.
EU exporters were likely among the main winners - and will be among the first to feel the hit as the IRA unravels.
Reposted by Joseph Shapiro
🚨 Call for papers:
Environment week at LSE will be Sept 22-25th.
Submissions are due soon (July 14)!
www.lse-environment-week.com/environment-...
Environment week at LSE will be Sept 22-25th.
Submissions are due soon (July 14)!
www.lse-environment-week.com/environment-...
LSE Environment Week 2025 — LSE Environment Week
www.lse-environment-week.com
July 9, 2025 at 8:30 PM
🚨 Call for papers:
Environment week at LSE will be Sept 22-25th.
Submissions are due soon (July 14)!
www.lse-environment-week.com/environment-...
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/🧵
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/🧵
June 27, 2025 at 1:46 PM
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/🧵
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/🧵
Reposted by Joseph Shapiro
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=...
Is Air Pollution Regulation Too Lenient? Evidence from US Offset Markets
(Forthcoming Article) - We develop a framework to estimate the marginal cost of air pollution regulation to assess the efficiency of air quality regulations. We utilize a provision of the Clean Air Ac...
www.aeaweb.org
June 25, 2025 at 1:25 PM
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=...
Reposted by Joseph Shapiro
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
"Cleaner water and higher housing prices: Evidence from China"
By Run Ge, Jialin Huang, & Xinzheng Shi
www.sciencedirect.com/science/arti...
#econsky
May 24, 2025 at 12:03 AM
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
"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...
🔗 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...
summer school — Maximilian Auffhammer
www.auffhammer.com
April 25, 2025 at 10:35 PM
🌎 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...
🔗 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
📅 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
Globalization and the Environment - ONLINE ONLY
Globalization and the Environment - ONLINE ONLY ESA - Central Council
esacentral.org.au
April 2, 2025 at 5:10 PM
🌍 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
📅 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
Reposted by Joseph Shapiro
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
📑Agenda www.nber.org/conferences/...
🎥 Webstream www.youtube.com/nbervideos
Organized w Natalia Ramondo, supported by @sloanfoundation.bsky.social
Energy Markets, Decarbonization, and Trade, Spring 2025
www.nber.org
March 17, 2025 at 3:24 AM
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
📑Agenda www.nber.org/conferences/...
🎥 Webstream www.youtube.com/nbervideos
Organized w Natalia Ramondo, supported by @sloanfoundation.bsky.social
Energy Markets, Decarbonization, and Trade, Spring 2025
www.nber.org
March 17, 2025 at 3:16 AM
🚨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
📑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.
🌍 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.
January 26, 2025 at 6:12 PM
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.
🌍 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
#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
www.aeaweb.org
January 1, 2025 at 4:07 PM
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
#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...
November 25, 2024 at 1:12 PM
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...
finance.yahoo.com/news/not-tri...
'Not trivial': EV sales could drop nearly 30% if Trump repeals tax credit
For the automotive industry, reports that President-elect Donald Trump and his team are looking to repeal the $7,500 federal tax credit are not surprising. However, the effect of a potential repeal co...
finance.yahoo.com
November 22, 2024 at 1:49 AM
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...
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...
One estimate: 27 percent decrease in sales relative to counterfactual, from Table 5 of joseph-s-shapiro.com/research/EVT...
joseph-s-shapiro.com
November 20, 2024 at 2:24 PM
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...
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...
My recent experience: twitter massively penalizes external media links. Testing here if bsky works better at that.
voxdev.org/topic/energy...
Stronger institutions improve environmental quality through specialisation
National air and water quality benefit from strong financial, judicial, and labour market institutions, through comparative advantage. Improving national institutions attracts clean industries but res...
voxdev.org
November 14, 2024 at 11:46 AM
@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...
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.
November 7, 2024 at 1:56 PM
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...
Our free public webinar tomorrow (Fri) 930am PT discusses.
Webinar signup: berkeley.zoom.us/webinar/regi...
Paper link: joseph-s-shapiro.com/research/EVT...
October 31, 2024 at 4:17 PM
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...
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
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
October 7, 2024 at 3:35 PM
🚨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
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 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
Machine learning predicts which rivers, streams, and wetlands the Clean Water Act regulates
A machine learning model improves estimates of the extent of protection by the US Clean Water Act and the effects of deregulation.
www.science.org
January 28, 2024 at 5:55 PM
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 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...
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...
Do Earmarks Target Low-Income and Minority Communities? Evidence from US Drinking Water
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...
www.nber.org
January 22, 2024 at 5:09 PM
🚨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...
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...
@allanhsiao.bsky.social, Reed Walker, Adrien Bilal, Doug Almond, @hernandezcortes.bsky.social, Juanma Castro Vincenzi
Details: aeaweb.org/conference/2...
American Economic Association
aeaweb.org
January 3, 2024 at 7:34 PM
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...
@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!)
👉 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!)
Recruitment
tinyurl.com
December 14, 2023 at 12:19 AM
🚨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!)
👉 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!)