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Joshua Weidmann

@joshuaweidmann

Predoc @HarvardEcon. Prev. @Konstanz and @LSE. Political Economy. #FirstGen https://joshuaweidmann.com/

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09.10.2023
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Latest posts by Joshua Weidmann @joshuaweidmann

🧺 Paper Picnic 2.0 is here! More journals. New features. An easier way to keep up with the latest research in political science and adjacent fields. πŸ§΅πŸ‘‡

27.02.2026 08:21 πŸ‘ 71 πŸ” 31 πŸ’¬ 1 πŸ“Œ 2
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πŸ“’ Call for Papers | LSE–Kiel–CEPR Conference on Defence Economics πŸ—“ 29–30 April 2026 | London
Jointly with LSE & @cepr.org we are inviting research on defence, war & military economics across all fields
❗️ Deadline: February 25, 2026 ❗️
πŸ‘‰ cepr.org/events/lse-k...

20.02.2026 13:12 πŸ‘ 8 πŸ” 6 πŸ’¬ 0 πŸ“Œ 0
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1/ Sorry for double-posting from X. Sharing a new working paper for the Year of the Horce 🐎:

"An AI-assisted workflow that scales reproducibility in empirical research" (bit.ly/repro-ai) w/ Leo Yang Yang

18.02.2026 19:21 πŸ‘ 76 πŸ” 26 πŸ’¬ 4 πŸ“Œ 6
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Andrew Kao on party bans How effective are political party bans?

Check out this video interview with Andrew Kao, a PhD candidate at @harvard.edu, about his #ASSA2026 poster on the unintended consequences of political party bans. #econsky www.aeaweb.org/conference/v...

09.02.2026 13:34 πŸ‘ 2 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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People of dubious character are more likely to enter public service A new study shows that customs and tax officials are the dodgiest

The link between future dishonest behaviour and aggressive borrowing from published sources in past academic work may seem tenuous. But an experiment seems to demonstrate that this variable reflects an enduring character trait

05.01.2026 07:00 πŸ‘ 12 πŸ” 6 πŸ’¬ 1 πŸ“Œ 0
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Full Professorship (W3) in Machine Learning Deadline: January 31, 2026

We @uni-konstanz.de are hiring a full professor in machine learning for our MSc program in Social and Economic Data Science: stellen.uni-konstanz.de/jobposting/6...

15.12.2025 14:51 πŸ‘ 17 πŸ” 19 πŸ’¬ 0 πŸ“Œ 1

Congrats, Thomas! πŸŽ‰

04.12.2025 10:21 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Call for Submissions: Democratic Resilience and the Politics of Belonging

Columbia, June 4-5, 2026

Co-Organizers: @aalrababah.bsky.social (Bocconi), @gemmadipoppa.bsky.social (Columbia), Shigeo Hirano (Columbia), @ginvernizzi.bsky.social (Bocconi)

Submit: lnkd.in/eiPgt_w5

Details ⬇️

07.11.2025 21:02 πŸ‘ 12 πŸ” 8 πŸ’¬ 0 πŸ“Œ 1
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Diversifying Society’s Leaders? The Determinants and Causal Effects of Admission to Highly Selective Private Colleges* Abstract. We use anonymized admissions data from several colleges linked to income tax records and SAT and ACT test scores to study the determinants and ca

Recently accepted by #QJE, β€œDiversifying Society’s Leaders? The Determinants and Causal Effects of Admission to Highly Selective Private Colleges,” by Chetty (@Oppinsights), Deming, and Friedman: doi.org/10.1093/qje/...

23.11.2025 20:56 πŸ‘ 41 πŸ” 16 πŸ’¬ 0 πŸ“Œ 9

Thank you for sharing! What's the source of this article?

23.11.2025 18:07 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Fascinating paper by @grattonecon.bsky.social, @bartonelee2.bsky.social, and Hasin Yousaf!
The paper addresses a fundamental question: Why do some democracies chronically avoid ambitious, long-term reforms even when they have decent institutions?
They argue that what matters is not only

03.11.2025 20:14 πŸ‘ 34 πŸ” 14 πŸ’¬ 3 πŸ“Œ 1
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Three Share Nobel in Economics for Work on How Technology Drives Growth Joel Mokyr was awarded half of the prize, and Philippe Aghion and Peter Howitt shared the other half.

Breaking News: The Nobel Memorial Prize in Economics was awarded to Joel Mokyr, Philippe Aghion and Peter Howitt for their work on how technology drives growth.

13.10.2025 10:08 πŸ‘ 98 πŸ” 12 πŸ’¬ 7 πŸ“Œ 13
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I am delighted to share that Nobel laureates Esther Duflo and Abhijit Banerjee will join our Department of Economics @econ.uzh.ch at the University of Zurich on July 1, 2026, as Lemann Foundation Professors of Economics.

🧡 1/7

10.10.2025 09:01 πŸ‘ 992 πŸ” 194 πŸ’¬ 24 πŸ“Œ 94
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The Opportunity Atlas: Mapping the Childhood Roots of Social Mobility (Forthcoming Article) - We construct a public atlas of mean outcomes in adulthood by childhood Census tract. Outcomes vary sharply across neighborhoods: for children whose parents earn $27,000, the st...

Forthcoming in the AER: "The Opportunity Atlas: Mapping the Childhood Roots of Social Mobility" by Raj Chetty, John N. Friedman, Nathaniel Hendren, Maggie R. Jones, and Sonya R. Porter. www.aeaweb.org/articles?id=...

22.09.2025 17:16 πŸ‘ 19 πŸ” 8 πŸ’¬ 0 πŸ“Œ 0
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🚨 The Virtual Workshop in Historical Political Economy is back! 🚨

For the new academic year, we have an amazing line up of papers for you!

In our inaugural session 2 HPE superstars will join us: @annagbusse.bsky.social (Stanford) will present & @jvoth.bsky.social (Zurich) discuss! I can't wait. πŸ˜€

09.09.2025 14:45 πŸ‘ 27 πŸ” 8 πŸ’¬ 1 πŸ“Œ 1

Three things made the US a rich and powerful nation: the rule of law, its science & innovation system, and openness to foreign talent. Remarkable how Trump has taken a sledgehammer to all three. No enemy of this country could do more.

22.05.2025 23:09 πŸ‘ 11411 πŸ” 3752 πŸ’¬ 297 πŸ“Œ 316
Stefanie Stantcheva, Clark Medalist 2025

Congratulations to Stefanie Stantcheva (@s-stantcheva.bsky.social) of @harvard.edu, winner of the 2025 John Bates Clark Medal! #econsky www.aeaweb.org/about-aea/ho...

22.04.2025 12:05 πŸ‘ 182 πŸ” 49 πŸ’¬ 0 πŸ“Œ 29
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Structural Estimation Under Misspecification: Theory and Implications for Practice* Abstract. A researcher can use a tightly parameterized structural model to obtain internally consistent estimates of a wide range of economically interesti

Recently accepted by #QJE, β€œStructural Estimation Under Misspecification: Theory and Implications for Practice,” by Andrews, Barahona (@nanobarahona.bsky.social), Gentzkow, Rambachan (@asheshrambachan.bsky.social), and Shapiro: doi.org/10.1093/qje/...

04.04.2025 21:24 πŸ‘ 19 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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Predoctoral Field-Based Research Associate (One Year) – Democratic Republic of Congo, UC Berkeley | The Abdul Latif Jameel Poverty Action Lab

Given the current political news, this may not be top of mind, but my co-authors and I are looking for French-speaking RAs to join projects in the DRC that study the role of state capacity in economic development.

1-year predoc: povertyactionlab.org/careers/pred...

23.03.2025 22:58 πŸ‘ 12 πŸ” 6 πŸ’¬ 1 πŸ“Œ 0

Our paper "Coordination and Incumbency Advantage in Multi-Party Systemsβ€”Evidence from French Elections" is now forthcoming @jeeanews.bsky.social !! πŸ‘‡πŸ‘‡
Short 🧡on what we do and find, with K. Dano, @francescoferlenga.bsky.social, @vingalasso.bsky.social, and @clpennec.bsky.social (1/10).

04.03.2025 13:43 πŸ‘ 21 πŸ” 7 πŸ’¬ 1 πŸ“Œ 1
Scatterplot titled β€œEmpirical Evidence of Ideological Targeting in Federal Layoffs: Agencies seen as liberal are significantly more likely to face DOGE layoffs.”
	β€’	The x-axis represents Perceived Ideological Leaning of federal agencies, ranging from -2 (Most Liberal) to +2 (Most Conservative), based on survey responses from over 1,500 federal executives.
	β€’	The y-axis shows Agency Size (Number of Staff) on a logarithmic scale from 1,000 to 1,000,000.

Each point represents a federal agency:
	β€’	Red dots indicate agencies that experienced DOGE layoffs.
	β€’	Gray dots indicate agencies with no layoffs.

Key Observations:
	β€’	Liberal-leaning agencies (left side of the plot) are disproportionately represented among red dots, indicating higher layoff rates.
	β€’	Notable targeted agencies include:
	β€’	HHS (Health & Human Services)
	β€’	EPA (Environmental Protection Agency)
	β€’	NIH (National Institutes of Health)
	β€’	CFPB (Consumer Financial Protection Bureau)
	β€’	Dept. of Education
	β€’	USAID (U.S. Agency for International Development)
	β€’	The National Nuclear Security Administration (DOE), despite its conservative leaning (+1 on the scale), is an exception among targeted agencies.
	β€’	A notable outlier: the Department of Veterans Affairs (moderately conservative) also faced layoffs despite its size.

Takeaway:

The figure visually demonstrates that DOGE layoffs disproportionately targeted liberal-leaning agencies, supporting claims of ideological bias. The pattern reveals that layoffs were not driven by agency size or budget alone but were strongly associated with perceived ideology.

Source: Richardson, Clinton, & Lewis (2018). Elite Perceptions of Agency Ideology and Workforce Skill. The Journal of Politics, 80(1).

Scatterplot titled β€œEmpirical Evidence of Ideological Targeting in Federal Layoffs: Agencies seen as liberal are significantly more likely to face DOGE layoffs.” β€’ The x-axis represents Perceived Ideological Leaning of federal agencies, ranging from -2 (Most Liberal) to +2 (Most Conservative), based on survey responses from over 1,500 federal executives. β€’ The y-axis shows Agency Size (Number of Staff) on a logarithmic scale from 1,000 to 1,000,000. Each point represents a federal agency: β€’ Red dots indicate agencies that experienced DOGE layoffs. β€’ Gray dots indicate agencies with no layoffs. Key Observations: β€’ Liberal-leaning agencies (left side of the plot) are disproportionately represented among red dots, indicating higher layoff rates. β€’ Notable targeted agencies include: β€’ HHS (Health & Human Services) β€’ EPA (Environmental Protection Agency) β€’ NIH (National Institutes of Health) β€’ CFPB (Consumer Financial Protection Bureau) β€’ Dept. of Education β€’ USAID (U.S. Agency for International Development) β€’ The National Nuclear Security Administration (DOE), despite its conservative leaning (+1 on the scale), is an exception among targeted agencies. β€’ A notable outlier: the Department of Veterans Affairs (moderately conservative) also faced layoffs despite its size. Takeaway: The figure visually demonstrates that DOGE layoffs disproportionately targeted liberal-leaning agencies, supporting claims of ideological bias. The pattern reveals that layoffs were not driven by agency size or budget alone but were strongly associated with perceived ideology. Source: Richardson, Clinton, & Lewis (2018). Elite Perceptions of Agency Ideology and Workforce Skill. The Journal of Politics, 80(1).

The DOGE firings have nothing to do with β€œefficiency” or β€œcutting waste.” They’re a direct push to weaken federal agencies perceived as liberal. This was evident from the start, and now the data confirms it: targeted agencies overwhelmingly those seen as more left-leaning. πŸ§΅β¬‡οΈ

20.02.2025 02:18 πŸ‘ 10676 πŸ” 4784 πŸ’¬ 252 πŸ“Œ 397
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Alte Wurzeln, neue Wurzeln? Zum Einfluss frΓΌherer rechtsradikaler UnterstΓΌtzung auf den AfD-Wahlerfolg bei der Europawahl 2024 - Politische Vierteljahresschrift Despite ongoing legal proceedings and the classification as right-wing extremists by state domestic intelligence services, the AfD was able to make considerable gains in Germany’s last European electi...

Publication alert @pvs-journal.bsky.social! In a new research note, @marcdebus.bsky.social, @pluggedchris.bsky.social and I investigate how past support for far-right extremist parties shaped the AfD's electoral success in the 2024 European elections.
A thread 🧡. link.springer.com/article/10.1...

17.02.2025 07:11 πŸ‘ 89 πŸ” 28 πŸ’¬ 4 πŸ“Œ 6
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Causes and Extent of Increasing Partisan Segregation in the U.S. – Evidence from Migration Patterns of 212 Million Voters 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...

Fascinating paper: partisan segregation is not due to sorting/migration. Counties trending Democratic tend to so because of generational change; Counties trending Republican tend to do so because of party switching.

www.nber.org/papers/w33422

13.02.2025 23:17 πŸ‘ 116 πŸ” 42 πŸ’¬ 2 πŸ“Œ 2
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πŸ”œ POLECONUK Webinar is back on 10 March! Our first talk is by BΓ₯rd Harstad (Stanford, @bardharstad.bsky.social) presenting "The Politics of Global Public Goods". For details visit us at: sites.google.com/view/polecon...

13.02.2025 23:21 πŸ‘ 8 πŸ” 3 πŸ’¬ 0 πŸ“Œ 3
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Digital Economics and AI Meeting, Spring 2025

Excited to spend the day at the NBER Digital Economics and AI Meeting!

I'll be presenting this paper on LLMs and empirical research: www.nber.org/papers/w33344

Full lineup of the conference: www.nber.org/conferences/...

13.02.2025 15:13 πŸ‘ 3 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Journal of Economic Perspectives Vol. 39 No. 1 Winter 2025

Our practical guide to shift-share IV is now out in the JEP!

www.aeaweb.org/issues/793

(Ungated version: www.dropbox.com/scl/fi/el9yn...)

13.02.2025 15:23 πŸ‘ 202 πŸ” 53 πŸ’¬ 3 πŸ“Œ 4

Holy forking shirt balls

"Denial of a wanted abortion has both immediate and lasting effects. It increases a woman’s risk of death by 2.5 p.p within nine months, mainly due to unsafe abortion procedures, and raises the likelihood of carrying the pregnancy to term by 31 p.p. "

30.01.2025 23:10 πŸ‘ 333 πŸ” 159 πŸ’¬ 6 πŸ“Œ 4
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πŸ“’Β Workshop CallΒ πŸ“’

3d Edition of the Yale-UB Historical Political Economy Workshop

Keynote: "Revolutionary Contagion" by Saumitra Jha and Steven Wilkinson

At University of Barcelona @ub.edu on June 30 and July 1, 2025

Send us your papers by Febr 28:Β shorturl.at/w96jk

@didacqueralt.bsky.social

29.01.2025 09:04 πŸ‘ 46 πŸ” 36 πŸ’¬ 0 πŸ“Œ 6
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Research Professional – Christopher Blattman (Full-Time, Benefits Eligible) Chicago, IL

Come work for me at UChicago @beckerfriedman.bsky.social ! I'm hiring a full-time pre-doc to start this April/May/June for data analysis on crime, education, mental health, and organized crime, mostly on projects in Latin America. Details & apply here: job-boards.greenhouse.io/universityof...

27.01.2025 19:56 πŸ‘ 31 πŸ” 28 πŸ’¬ 0 πŸ“Œ 0