Mostafa Shartaj's Avatar

Mostafa Shartaj

@stafs.bsky.social

Assistant Prof at University of Manitoba. I study Agricultural, Environmental, and Resource Econ. Interested in natural experiments. He/Him.

65 Followers  |  176 Following  |  1 Posts  |  Joined: 27.11.2024  |  2.2424

Latest posts by stafs.bsky.social on Bluesky

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We are hosting virtual Replication Games on Friday November 13th, 2025 with @ukrepro.bsky.social ro.bsky.social. This is our 2nd year collaborating with UKRN. Psych, public health, pol sci and econ studies will be reproduced!

Register here: www.surveymonkey.ca/r/I4R_Replic...

20.10.2025 18:20 β€” πŸ‘ 5    πŸ” 4    πŸ’¬ 0    πŸ“Œ 2
ABSTRACT
This article examines how political messengers, and not the message, influence attitudes toward renewable energy infrastructure amid an increasingly polarized climate change debate. Focusing on wind power, a highly politicized issue, and solar energy, less contentious, we conducted an experimental survey in Germany. We assess how either a far-right or an environmentalist critic affect acceptance of renewables. Importantly, our analysis examines support for renewables in forest areas, focusing on a conflict between climate action and local environmental protection. Our findings reveal that the messenger impacts attitudes regarding wind energy. Criticism of wind turbine expansion by an environmentalist actor leads to greater rejection, while a similar critique by a far-right actor results in increased acceptance, i.e. a backlash effect. No such influence was found for solar energy. We explain these diverging findings by differences in politicization. Our findings have important consequences for understanding key dynamics of the public debate and political conflict over climate action.

ABSTRACT This article examines how political messengers, and not the message, influence attitudes toward renewable energy infrastructure amid an increasingly polarized climate change debate. Focusing on wind power, a highly politicized issue, and solar energy, less contentious, we conducted an experimental survey in Germany. We assess how either a far-right or an environmentalist critic affect acceptance of renewables. Importantly, our analysis examines support for renewables in forest areas, focusing on a conflict between climate action and local environmental protection. Our findings reveal that the messenger impacts attitudes regarding wind energy. Criticism of wind turbine expansion by an environmentalist actor leads to greater rejection, while a similar critique by a far-right actor results in increased acceptance, i.e. a backlash effect. No such influence was found for solar energy. We explain these diverging findings by differences in politicization. Our findings have important consequences for understanding key dynamics of the public debate and political conflict over climate action.

New article!

Climate action versus environmental protection? How far-right and environmentalist messengers shape public attitudes towards renewable energy infrastructure in forests, by @manesweisskircher.bsky.social and Matthias Diermeier.

doi.org/10.1080/0964...

09.10.2025 06:26 β€” πŸ‘ 22    πŸ” 8    πŸ’¬ 2    πŸ“Œ 0

🚨I4R is looking to hire postdoc fellows in public health and computer science!

The postdoc will join a team of researchers and help mass reproduce studies in leading public health journals or develop AI replicator agents.

Info πŸ‘‡

30.09.2025 18:18 β€” πŸ‘ 17    πŸ” 18    πŸ’¬ 1    πŸ“Œ 2
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Why Don’t Struggling Students Do Their Homework? Disentangling Motivation and Study Productivity as Drivers of Human Capital Formation 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...

This is a pretty remarkable paper and seems to suggest "grit" is not necessarily the driving force behind student achievement:

www.nber.org/papers/w3427...

28.09.2025 02:05 β€” πŸ‘ 55    πŸ” 11    πŸ’¬ 2    πŸ“Œ 2
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Peer-reviewed publications from IFPRI researchers This week’s collection features new research household food security and maternal dietary diversity in Ethiopia, evaluating large-scale government investments in fertilizer adoption, the impact of ran...

πŸ“š The latest edition of Weekly Reads from IFPRI is now online on LinkedIn!

πŸ”— Read more here: on.cgiar.org/470wovH

@cgiar.org

19.08.2025 21:20 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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I’ve got a new working paper with @danielavidart.bsky.social, hot off the press. We develop a new method for measuring the risk preferences of agents in the past, and apply it to the U.S. from 1890-1920.

Check it out! Feedback is welcome.

www.dropbox.com/scl/fi/chcof...

16.08.2025 18:34 β€” πŸ‘ 45    πŸ” 14    πŸ’¬ 4    πŸ“Œ 1
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A Swedish economist just dropped a paper where he used data from a quarter of a billion chess.com games to test a classic Q: do β€œhot hands” exist?

Finding:

βœ… Wins predict wins
❌ But wins don’t cause wins

Using random piece assignment, he finds that win streaks exist; but they’re just noise.

11.07.2025 22:28 β€” πŸ‘ 34    πŸ” 9    πŸ’¬ 4    πŸ“Œ 0
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Migrating to new economic opportunities in cities, rural Indian families don't mechanize, they downsize their farms. Their neighbors produce more as land and crops markets adjust, from @raamadhok.bsky.social, Noack, Mushfiq Mobarak, and Deschenes https://www.nber.org/papers/w33854

01.06.2025 11:00 β€” πŸ‘ 8    πŸ” 2    πŸ’¬ 0    πŸ“Œ 1

(2) We have launched a new tool: Paper Skygest Bookmarks! This is a list of posts about papers that you have liked. You need to like the post *containing the url*; it doesn’t matter whether you like the post while using Skygest.

21.05.2025 18:33 β€” πŸ‘ 54    πŸ” 7    πŸ’¬ 4    πŸ“Œ 5

Hi Skygesters! We have 2 updates.
(1) We are starting to do research to improve and study Skygest and want everyone on board! See our thread here for details regarding data and consent.

21.05.2025 18:33 β€” πŸ‘ 52    πŸ” 6    πŸ’¬ 1    πŸ“Œ 1
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Lives Versus Livelihoods: The Impact of the Great Recession on Mortality and Welfare*

Recently accepted by #QJE, β€œLives Versus Livelihoods: The Impact of the Great Recession on Mortality and Welfare,” by Finkelstein, Notowidigdo (@profnoto.bsky.social), Schilbach, and Zhang: doi.org/10.1093/qje/...

15.05.2025 15:13 β€” πŸ‘ 19    πŸ” 5    πŸ’¬ 0    πŸ“Œ 0
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All of my top 6 camping spots on the planet burned to the ground in out of control forest fires this week.

Climate change is here and the impacts are brutal.

14.05.2025 18:37 β€” πŸ‘ 11    πŸ” 4    πŸ’¬ 1    πŸ“Œ 1
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You probably know that randomized controlled trials (RCTs)--wherein some randomly assigned treatment is compared to some randomly assigned control--play a huge role in science.

It's hard to imagine where we'd be without them.

But here are a few historical facts that you might not know about RCTs.

08.05.2025 15:27 β€” πŸ‘ 10    πŸ” 1    πŸ’¬ 2    πŸ“Œ 0
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You've heard of the many analysts projects, right?

Scholars give the same dataset/question to a bunch of researchers & they still get different answers.

Why is that?

Data cleaning!

This is consistent with Gelman's "garden of forking paths." Small coding decisions often drive results.

05.05.2025 14:13 β€” πŸ‘ 162    πŸ” 55    πŸ’¬ 3    πŸ“Œ 5
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Do Tuition Subsidies Raise Political Participation? (Forthcoming Article) - Civic externalities motivate education expenditures, but estimates of the civic returns to large-scale education subsidies are scarce. We use 16 million financial aid applicati...

Forthcoming in AEJ: Economic Policy: "Do Tuition Subsidies Raise Political Participation?" by Daniel Firoozi and Igor Geyn. www.aeaweb.org/articles?id=...

02.05.2025 13:43 β€” πŸ‘ 8    πŸ” 4    πŸ’¬ 0    πŸ“Œ 3
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✨ Just accepted ✨ in JAERE:

"Group size and threshold uncertainty in common-pool resource dilemmas" by Philip Brookins and Weston Watts

Read it here: www.journals.uchicago.edu/doi/10.1086/...

#EconSky πŸ“ˆ πŸ“‰

28.04.2025 12:03 β€” πŸ‘ 2    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
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πŸ†• Just accepted πŸ†• in JAERE:

"The Distributional Consequences of Incomplete Regulation" by Danae Hernandez-Cortes (@hernandezcortes.bsky.social)

Read it here: www.journals.uchicago.edu/doi/10.1086/...

#EconSky πŸ“ˆ πŸ“‰

23.04.2025 12:03 β€” πŸ‘ 15    πŸ” 7    πŸ’¬ 0    πŸ“Œ 0
Camp Resources XXXI
 Call for Abstracts

 

We invite graduate students and young professionals to submit research abstracts to Camp Resources XXXI, which will be held August 3-5, 2025 at the Cambria Downtown Asheville Hotel. The workshop will begin with a reception on Sunday evening, August 3rd, with presentations starting early Monday morning, August 4th and concluding mid-afternoon on Tuesday, August 5th.  

 

Presentation Formats & Travel Support

 Camp Resources is a workshop designed for graduate students and young professionals to present their research in a relaxed but serious environment. We do not expect a paper. However, a clear, well-organized, twenty-minute presentation describing a completed or emerging research project has been standard fare. We also include shorter, 8-minute research sketches that are ideal for students in the early stages of dissertation work.

 Through the generous support of NC State’s Center for Environmental and Resource Economic Policy, the Journal of Environmental Economics and Management, the Alfred P. Sloan Foundation, Resources for the Future, Industrial Economics, and Georgia Tech’s School of Economics, we will partially defray travel expenses for those giving regular presentations and, in a more limited way, those giving research sketches.

 All graduate students, young professionals, and faculty are invited to attend, although we cap attendance at 70 people. A modest registration fee will be charged.

 

Submission Information

 Short abstracts not more than 500 words may be submitted at:

 https://go.ncsu.edu/camp_resources.

 To receive full consideration, you must submit by Friday, May 23, 2025. You will be asked to include a short, 2-page vita with your abstract.  We will notify presenters of accepted abstracts by June 9th.

Questions?  Contact enviro_econ@ncsu.edu or Roger von Haefen at roger_von_haefen@ncsu.edu.

Camp Resources XXXI Call for Abstracts We invite graduate students and young professionals to submit research abstracts to Camp Resources XXXI, which will be held August 3-5, 2025 at the Cambria Downtown Asheville Hotel. The workshop will begin with a reception on Sunday evening, August 3rd, with presentations starting early Monday morning, August 4th and concluding mid-afternoon on Tuesday, August 5th. Presentation Formats & Travel Support Camp Resources is a workshop designed for graduate students and young professionals to present their research in a relaxed but serious environment. We do not expect a paper. However, a clear, well-organized, twenty-minute presentation describing a completed or emerging research project has been standard fare. We also include shorter, 8-minute research sketches that are ideal for students in the early stages of dissertation work. Through the generous support of NC State’s Center for Environmental and Resource Economic Policy, the Journal of Environmental Economics and Management, the Alfred P. Sloan Foundation, Resources for the Future, Industrial Economics, and Georgia Tech’s School of Economics, we will partially defray travel expenses for those giving regular presentations and, in a more limited way, those giving research sketches. All graduate students, young professionals, and faculty are invited to attend, although we cap attendance at 70 people. A modest registration fee will be charged. Submission Information Short abstracts not more than 500 words may be submitted at: https://go.ncsu.edu/camp_resources. To receive full consideration, you must submit by Friday, May 23, 2025. You will be asked to include a short, 2-page vita with your abstract. We will notify presenters of accepted abstracts by June 9th. Questions? Contact enviro_econ@ncsu.edu or Roger von Haefen at roger_von_haefen@ncsu.edu.

JEEM is happy to be a sponsor of Camp Resources XXXI in Asheville, NC. #econsky

Graduate students and young professionals, be sure to submit your abstracts by May 23.

Details here: cenrep.ncsu.edu/events/camp-...

21.04.2025 20:10 β€” πŸ‘ 6    πŸ” 4    πŸ’¬ 0    πŸ“Œ 0
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🌬️ Just accepted πŸ‡§πŸ‡· in JAERE:

"The Effects of Renewable Energy Projects on Employment: Evidence from Brazil" by Danae Hernandez-Cortes (@hernandezcortes.bsky.social) and Sophie Mathes (@s-mathes.bsky.social)

Read it here: www.journals.uchicago.edu/doi/10.1086/...

#EconSky πŸ“ˆ πŸ“‰

21.04.2025 12:02 β€” πŸ‘ 21    πŸ” 8    πŸ’¬ 0    πŸ“Œ 1
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Spatial and Temporal Patterns of Wolf [Mahihkan (Cree), Tha (Denesuline), Amaruk (Inuktitut), Canis lupus] Occurrences on the Summer Range of the Eastern Migratory Cape Churchill Caribou Population in... Wolves (Canis lupus) function as a top predator across diverse ecosystems including the sub-arctic, and they have been managed in often controversial ways. Communities and scientists are increasingly ...

Latest pre-print:

Spatial and Temporal Patterns of Wolf [Mahihkan (Cree), Tha (Denesuline), Amaruk (Inuktitut), Canis lupus] Occurrences on the Summer Range of the Eastern Migratory Cape Churchill Caribou Population in the Hudson Bay Lowlands of Manitoba

www.biorxiv.org/content/10.1...

18.04.2025 19:49 β€” πŸ‘ 4    πŸ” 2    πŸ’¬ 1    πŸ“Œ 1
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Direct and Indirect Effects of Vaccines: Evidence from COVID-19 (Forthcoming Article) - We estimate direct and indirect vaccine effectiveness and assess how far the infection-reducing externality extends from the vaccinated, a key input to policy decisions. Our em...

Forthcoming in AEJ: Applied Economics: "Direct and Indirect Effects of Vaccines: Evidence from COVID-19" by Seth Freedman, Daniel W. Sacks, Kosali Simon, and Coady Wing. www.aeaweb.org/articles?id=...

15.04.2025 13:53 β€” πŸ‘ 7    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
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πŸ’΅ Just accepted πŸ’΅ in JAERE:

"Anticipatory cash transfers in the context of weather disasters" by Lukas Mogge (@lukasmogge.bsky.social), Julian Roeckert, and Kati Kraehnert

Read it here: www.journals.uchicago.edu/doi/10.1086/...

#EconSky πŸ“ˆ πŸ“‰

14.04.2025 12:03 β€” πŸ‘ 8    πŸ” 1    πŸ’¬ 0    πŸ“Œ 2
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One consequence of restrictive development in urban cores:

Most of the employment growth in the western US since 1990 has taken place in high wildfire hazard areas.

Via Joiner, Walls, Wibbenmeyer 2025.

media.rff.org/documents/Re...

14.04.2025 18:22 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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🌑️ Just accepted 🌑️ in JAERE:

"Who heeds the call to conserve in an energy emergency? Evidence from smart thermostat data" by Dylan Brewer and Jim Crozier

Read it here: www.journals.uchicago.edu/doi/10.1086/...

#EconSky πŸ“ˆ πŸ“‰

09.04.2025 12:01 β€” πŸ‘ 6    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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AERE@OSWEET returns *this Friday* April 11th at 2pm Eastern (11am Pacific) with 3 terrific talks on politics, media, & the environment!

Presenters:
✨ Prashant Garg (@prashantgarg.bsky.social) 
✨ Rosanne Logeart (@rosannelogeart.bsky.social) 
✨ Hannah Farkas

Register: buff.ly/JhWGo59

#EconSky πŸ“‰ πŸ“ˆ

08.04.2025 12:00 β€” πŸ‘ 7    πŸ” 5    πŸ’¬ 0    πŸ“Œ 0
Harvard Professor Stefanie Stantcheva on Zero-Sum Political Thinking
YouTube video by Harvard Magazine Harvard Professor Stefanie Stantcheva on Zero-Sum Political Thinking

The zero-sum mindset seems more and more relevant in the current environment. Thank you @harvardmagazine.bsky.social
for the video where I explain our research on why zero-sum thinking is so important and where it comes from.
www.youtube.com/watch?v=e16o...

08.04.2025 15:44 β€” πŸ‘ 83    πŸ” 24    πŸ’¬ 3    πŸ“Œ 2
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🐦 Just accepted 🐦 in JAERE:

"Infrastructure, Institutions, and the Conservation of Biodiversity in India" by Raahil Madhok (@raamadhok.bsky.social)

Read it here: www.journals.uchicago.edu/doi/10.1086/...

#EconSky πŸ“ˆ πŸ“‰

07.04.2025 12:01 β€” πŸ‘ 8    πŸ” 8    πŸ’¬ 0    πŸ“Œ 1

A tricky thing about modern society is that no one has any idea when they don’t die.

Like, the number of lives saved by controlling air pollution in America is probably over 200,000 per year, but the number of people who think their life was saved by controlling air pollution is zero.

07.04.2025 04:13 β€” πŸ‘ 63271    πŸ” 13092    πŸ’¬ 1089    πŸ“Œ 586
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Why are we not doing more to fight climate change? New study surveys 40k people in 20 countries to understand 1/ what drives support/opposition to important climate policies 2/ how much people know about climate change & 3/ how info can change perceptions socialeconomicslab.org/internationa...

02.04.2025 20:11 β€” πŸ‘ 37    πŸ” 7    πŸ’¬ 1    πŸ“Œ 1

@stafs is following 20 prominent accounts