Mostafa Shartaj
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stafs.bsky.social
Mostafa Shartaj
@stafs.bsky.social
66 followers 180 following 1 posts
Assistant Prof at University of Manitoba. I study Agricultural, Environmental, and Resource Econ. Interested in natural experiments. He/Him.
Posts Replies Media Videos
Reposted by Mostafa Shartaj
felixpretis.bsky.social
Drought influences human-wildlife conflict in California, very cool paper! Results seem consistent with our work on human-wildlife conflict in BC: papers.ssrn.com/sol3/papers....
November 15, 2025 at 7:03 PM
Reposted by Mostafa Shartaj
aereorg.bsky.social
📢 Out now in the 🍁November 2025 issue🍁of #JAERE! 📢
"Hotelling Meets Wright: Spatial Sorting and Measurement Error in Recreation Demand Models" by Jacob T. Bradt ( @jtbradt.bsky.social ).
Read it here: buff.ly/3YiBhqQ
📈📉 #Econsky
November 12, 2025 at 1:01 PM
Reposted by Mostafa Shartaj
i4replication.bsky.social
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...
October 20, 2025 at 6:21 PM
Reposted by Mostafa Shartaj
environmentalpol.bsky.social
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...
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.
October 9, 2025 at 6:26 AM
Reposted by Mostafa Shartaj
i4replication.bsky.social
🚨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 👇
September 30, 2025 at 6:18 PM
Reposted by Mostafa Shartaj
paulgp.com
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...
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...
www.nber.org
September 28, 2025 at 2:05 AM
Reposted by Mostafa Shartaj
ifpri.org
📚 The latest edition of Weekly Reads from IFPRI is now online on LinkedIn!

🔗 Read more here: on.cgiar.org/470wovH

@cgiar.org
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...
on.cgiar.org
August 19, 2025 at 9:20 PM
Reposted by Mostafa Shartaj
remylevin.bsky.social
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...
August 16, 2025 at 6:34 PM
Reposted by Mostafa Shartaj
johnholbein1.bsky.social
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 “hot hands” exist?

Finding:

✅ Wins predict wins
❌ But wins don’t cause wins

Using random piece assignment, he finds that win streaks exist; but they’re just noise.
July 11, 2025 at 10:29 PM
Reposted by Mostafa Shartaj
nber.org
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
June 1, 2025 at 11:00 AM
Reposted by Mostafa Shartaj
paper-feed.bsky.social
(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.
May 21, 2025 at 6:33 PM
Reposted by Mostafa Shartaj
paper-feed.bsky.social
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.
paper-feed.bsky.social Paper Skygest Team @paper-feed.bsky.social · May 21
As we improve Skygest, we will conduct research based on usage! The purpose is to evaluate feed designs and improve academic experiences on Bluesky :) This thread contains key information regarding consent; full details are at skygest.github.io.
Paper Skygest
skygest.github.io
May 21, 2025 at 6:33 PM
Reposted by Mostafa Shartaj
qjeharvard.bsky.social
Recently accepted by #QJE, “Lives 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/...
Lives Versus Livelihoods: The Impact of the Great Recession on Mortality and Welfare*
doi.org
May 15, 2025 at 3:14 PM
Reposted by Mostafa Shartaj
ryankbrook.bsky.social
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.
May 14, 2025 at 6:37 PM
Reposted by Mostafa Shartaj
johnholbein1.bsky.social
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.
May 8, 2025 at 3:27 PM
Reposted by Mostafa Shartaj
johnholbein1.bsky.social
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.
May 5, 2025 at 2:13 PM
Reposted by Mostafa Shartaj
aeajournals.bsky.social
Forthcoming in AEJ: Economic Policy: "Do Tuition Subsidies Raise Political Participation?" by Daniel Firoozi and Igor Geyn. www.aeaweb.org/articles?id=...
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...
www.aeaweb.org
May 2, 2025 at 1:43 PM
Reposted by Mostafa Shartaj
jaereaere.bsky.social
✨ 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 📈 📉
April 28, 2025 at 12:03 PM
Reposted by Mostafa Shartaj
jaereaere.bsky.social
🆕 Just accepted 🆕 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 📈 📉
April 23, 2025 at 12:03 PM
Reposted by Mostafa Shartaj
jeem-econ.bsky.social
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-...
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.
April 21, 2025 at 8:10 PM
Reposted by Mostafa Shartaj
jaereaere.bsky.social
🌬️ Just accepted 🇧🇷 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 📈 📉
April 21, 2025 at 12:02 PM
Reposted by Mostafa Shartaj
ryankbrook.bsky.social
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...
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 ...
www.biorxiv.org
April 18, 2025 at 7:49 PM
Reposted by Mostafa Shartaj
aeajournals.bsky.social
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=...
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...
www.aeaweb.org
April 15, 2025 at 1:53 PM
Reposted by Mostafa Shartaj
jaereaere.bsky.social
💵 Just accepted 💵 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 📈 📉
April 14, 2025 at 12:03 PM