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Jens Rommel

@jensrommel.bsky.social

1.5K followers 3.2K following 87 posts

Agricultural Economist at the Swedish University of Agricultural Sciences | Behavioral and Experimental Economics of Agriculture and the Environment | Posting mostly in English and German

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Economics 26%

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Jens Rommel @jensrommel.bsky.social · 1d

Thanks for highlighting this! Let's see if a journal wants this.

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Reposted by Jens Rommel

Moritz Peter Fritschle @moritzfritschle.bsky.social · 1d

Cool new research piece by Julian Sagebiel, @jensrommel.bsky.social and @qrisschulze.bsky.social about pre-registrations for #DCE.

Pre-regs are researchers' commitments to design, research question, hypothesis and data collection and can enhance research transparency.

A Pre-Registration Template for Transparent Choice Experiment Research

This paper discusses pre-registration for choice experiments, a common method for valuing non-market goods in environmental economics. In a pre-registration, au

papers.ssrn.com

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Reposted by Jens Rommel

Michael Roth 🇪🇺🇺🇦🇬🇪🇮🇱 @michaelroth.bsky.social · 4d

Heute gibt’s was auf die Ohren: mit Wolfgang Heim spreche ich bei Apokalypse & Filterkaffee über #ZonenDerAngst. @mickybeisenherz.bsky.social

Hört doch mal rein. 👇🏽 🎧 💥

apokalypse-und-filterkaffee.podigee.io/1572-heimspi...

Heimspiel: Höhenrausch und Absturz (mit Michael Roth)

Michael Roth saß 27 Jahre für die SPD im Bundestag, war zum Schluss der Vorsitzende des Auswärtigen Ausschusses. Vor kurzem hat er die Politik verlassen und ein Buch mit dem beziehungsreichen Titel “Z...

apokalypse-und-filterkaffee.podigee.io

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Reposted by Jens Rommel, Wolfgang Huber, Maksym Polyakov

Paul Hünermund @p-hunermund.com · 7d

Post a favorite econ paper: Lichter et al. (2021, JEEA) @sigginho.bsky.social

Regions with higher Stasi spy density in East Germany still show lower trust, lower incomes, higher unemployment, and less entrepreneurship decades after reunification.

Open-access link: doi.org/10.1093/jeea...

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Reposted by Jens Rommel

Robert Finger @robertfinger.bsky.social · 7d

Deadline for Abstracts 15.10.2025.

54th Annual conference Swiss Society for Agricultural Economics and Agricultural Sociology (SGA) May 07-08, 2026 at BFH in Zollikofen on “Economic and social resilience in the agricultural and food sector”

Further details www.sse-sga.ch/en/sse-sga/m...

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Reposted by Jens Rommel

Bartosz Bartkowski @bartoszbartk.com · 7d

Mein Status als „Person mit Migrationshintergrund“ ist ziemlich offensichtlich. Da man es mir (abgesehen vom Namen) aber kaum anmerkt, gehe ich oft genug als „deutsch“ durch. Und auch wenn mir persönlich das ziemlich egal ist, weil ich kein Bedürfnis habe, als „deutsch“ oder „polnisch“...

Bartosz Bartkowski @bartoszbartk.com · 7d

Ein sehr lesenswerter Text

sz-magazin.sueddeutsche.de/leben-und-ge...

»Einen Migrationshintergrund hat niemand, er wird einem zugeschrieben«

sz-magazin.sueddeutsche.de

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Reposted by Joanna Bryson, Meredith Broussard, Ingo Rohlfing , and 9 more Joanna Bryson, Meredith Broussard, Ingo Rohlfing, Ian Hussey, Martin Kreidl, Brian Keegan, Matt N Williams, Jens Rommel, Dana R. Fisher, Johannes Breuer, Nathan P. Kalmoe, Dana Howard

Julia M. Rohrer @dingdingpeng.the100.ci · 9d

A lot of psych is already conducted with online convenience samples & ppl are probably excited about silicon samples bc it would allow them to crank out more studies for even less 💸

How about we reconsider the idea that sciencey science involves collecting own data.
www.science.org/content/arti...

AI-generated ‘participants’ can lead social science experiments astray, study finds

Data produced by “silicon samples” depends on researchers’ exact choice of models, prompts, and settings

www.science.org

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Reposted by Richard S.J. Tol, Andreas Kotsadam, Jens Rommel , and 1 more Richard S.J. Tol, Andreas Kotsadam, Jens Rommel, Dietmar Fehr

Institute for Replication @i4replication.bsky.social · 9d

🚨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 👇

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Reposted by Ingolf Kühn, Jens Rommel

Bartosz Bartkowski @bartoszbartk.com · 9d

Really, really happy to share this new publication by Malin Gütschow and myself on farmers’ identity in the context of multifunctionality 🚜🌾🪲🐦

link.springer.com/article/10.1...

A 🧵

Farmers (are expected to) fulfil diverse economic, environmental, and social roles or functions. Yet the relative importance of these functions remains contested both within farming communities and in the broader society. Understanding how farmers prioritize these different functions as a reflection of their role identity is crucial, given the increasing recognition of the importance of identity as a determinant of farmer behaviour. We frame this aspect of farmer identity in terms of multifunctionality, a common lens for analysing the performance of agriculture relative to societal demands. However, while this concept is often used with an ecological focus, our study builds on a broader interpretation that encompasses the full range of social, cultural, economic, and ecological functions. Furthermore, we focus on the roles farmers themselves would like to play when looking 10 to 20 years into the future. We apply Q methodology to see how farmers from Eastern Germany prioritize among 71 societal functions. We use the Q sorts and qualitative data to derive and characterize a typology of three narrative perspectives. The results demonstrate the breadth and heterogeneity of farmers' role identity, and therefore the need to go beyond a narrow focus on ecological roles or functions.

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Reposted by Jens Rommel

Gilad Feldman @giladfeldman.bsky.social · 10d

Our PCIRR Stage 2 Registered Report now officially accepted by Royal Society Open Science:

"Revisiting mental accounting classic paradigms: Replication Registered Report of the problems reviewed in Thaler (1999)"

Mengfei Li's remarkable UG RRR thesis.

Details 👇🧵

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Reposted by Jens Rommel

Shon Ferguson @shonferguson.bsky.social · 16d

Very happy to share the published version of this paper, which is open access.

"The impact of animal welfare regulations on pork trade: evidence from European countries" (with Anna Wallenbeck, Sigrid Agenäs, and Helena Hansson)
doi.org/10.1016/j.fo...

Redirecting

doi.org

Reposted by Richard S.J. Tol, Jens Rommel, Johannes Breuer

Jörg Ankel-Peters @jrgptrs.bsky.social · 23d

I4R Replication Games coming to Münster! @i4replication.bsky.social @aufdroeseler.bsky.social @fialalenka.bsky.social

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Reposted by Jens Rommel

Department of Economics, SLU @slu-econ.bsky.social · 24d

New article: "Comparing a multi-item Rasch scale for purchase intentions with preference elicitation using experimental auctions for consumer acceptance of biofortified food: An in-store study in Rwanda"

doi.org/10.1016/j.fo...

Reposted by Joanna Bryson, Richard S.J. Tol, Dorothy Bishop , and 5 more Joanna Bryson, Richard S.J. Tol, Dorothy Bishop, Alistair Munro, Knut Einar Rosendahl, Dominik Wiedenhofer, Paolo Crosetto, Jens Rommel

Joel Wood 🇨🇦 @joelwwood.bsky.social · 24d

Whoa! Elsevier fired @richardtol.bsky.social, longstanding Editor-in-Chief of the journal Energy Economics. Richard's side of the story should be ringing alarm bells. #EconSky

Fraud and cover-up
richardtol.substack.com/p/fraud-and-...

Fraud and cover-up

richardtol.substack.com

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Reposted by Jens Rommel

Land Economics Group (Uni Bonn) @land-economics.bsky.social · 27d

We have an open PhD position in the @Land_Economics under the supervision of @DavidWuepper. The position is fully funded for at least 3 years and will contribute to the ERC Starting Grant LAND-POLICY and other exciting projects. Deadline is end of October!

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Reposted by John T. Jost, Robert C. Richards, Jens Rommel

Vukašin Gligorić, PhD @vukasin.bsky.social · 28d

🌍Do all nations believe they’re superior—or do some feel inferior?

Western social sciences claimed the first. But Fanon & Memmi argued colonization by the West left many in the Global South with colonial mentality—internalized oppression.

🧵Findings from our 45-country study:

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Reposted by Jens Rommel, Guido Heineck

Martin Huber @causalhuber.bsky.social · Sep 9

📚 In summer 2023, my book Causal Analysis was published with @mitpress.bsky.social. Just two years later😉 I’m very happy to share that the lecture slides are now freely available in both PDF and LaTeX (as zip files), along with the datasets and R/Python code:
👉 www.unifr.ch/appecon/en/r...

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Reposted by Jens Rommel

Robert Finger @robertfinger.bsky.social · Sep 4

It was a great honor and pleasure to give today a keynote at the 15th Congress of the Spanish Association of Agricultural Economics on “Digital Innovations in Agriculture: A Sustainability and Production Economics Perspective”

Details #XVCongresoAEEA economiaagroalimentaria.es/en/xv-congre...

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Jens Rommel @jensrommel.bsky.social · Sep 3

Congrats! And thanks for sending it to the GJAE!

Bartosz Bartkowski @bartoszbartk.com · Sep 3

New paper out, where we attempted to identify clusters of behaviourally similar* agri-environmental practices: www.tib-op.org/ojs/index.ph...

* similar in terms of behaviourally relevant, adoption-driving factors

Grouping Agri-Environmental Practices in Germany Along Behavioural Drivers for Adoption | German Journal of Agricultural Economics

www.tib-op.org

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Reposted by Jens Rommel

Shon Ferguson @shonferguson.bsky.social · Sep 3

🚨 New paper accepted at Food Policy! 🚨🥳

"The Impact of Animal Welfare Regulations on Pork Trade: Evidence from European Countries"

with Anna Wallenbeck, Sigrid Agenäs, and Helena Hansson.

2024 WP link: publications.slu.se?file=publ/sh...

The Impact of Animal Welfare Regulations on Pork Trade: Evidence from European Countries

We analyse the impact of stricter national animal welfare (AW) regulations on imports and exports of pork between 13 European countries during the pe

publications.slu.se

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Reposted by Jens Rommel

Bartosz Bartkowski @bartoszbartk.com · Sep 3

Grouping Agri-Environmental Practices in Germany Along Behavioural Drivers for Adoption | German Journal of Agricultural Economics

www.tib-op.org

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Reposted by Paul Lehmann, Jens Rommel

Bartosz Bartkowski @bartoszbartk.com · Sep 1

Knowing Moritz and Jasper, I am pretty sure this piece is worth a read: www.aeaweb.org/articles?id=...

The Economics of Inequality and the Environment

(September 2025) - Environmental degradation and economic inequality are two of the defining challenges of the twenty-first century. We synthesize conceptual mechanisms that underpin inequality–enviro...

www.aeaweb.org

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Reposted by Paolo Crosetto, Jens Rommel

Robert Finger @robertfinger.bsky.social · Aug 31

Fellow of the European Association of Agricultural Economists🥳

I am beyond words and incredibly honored to receive the European Association of Agricultural Economists' (EAAE) Fellowship Award, the highest recognition in European agricultural economics.

eaae.org/ItemText.asp...

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Reposted by Jens Rommel

Robert Finger @robertfinger.bsky.social · Aug 29

Excellent presentation by Robert Huber on a paper on ‘The Role of Behavioral and Social Factors in Agent-Based Models for Agricultural Policy Evaluations’

at the 18th EAAE Congress in a great session on ‘Behavioural Experimental Methods & Modelling’

@robehube.bsky.social

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Jens Rommel @jensrommel.bsky.social · Aug 27

Correction: Meta-analysis is solo work by Jesus; we have a recent empirical paper where we also review some of this literature, but Jesus substantially extended this.

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Reposted by Jens Rommel

Bartosz Bartkowski @bartoszbartk.com · Aug 27

So true
#EAAE2025

Power Point slide with a stylized diagram of two intersecting curves, one sloping upwards (number of surveys over time), one downwards (number of farms over time)

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Reposted by Jens Rommel

Moritz Peter Fritschle @moritzfritschle.bsky.social · Aug 27

The #REECAP Session on 'How to Deal with null-results?' is over crowded. Very cool that so many researchers are interested in this issue. #EAAE2025

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Reposted by Jens Rommel

Jörg Ankel-Peters @jrgptrs.bsky.social · Aug 26

Hey #EAAE2025: Thursday is replication day. First, Anna Dreber's keynote on "Predicting Replication Outcomes" (11am) & our session👇(4pm) feat. ‪@robertfinger.bsky.social‬ @cedricchambru.bsky.social‬ @jensrommel.bsky.social‬ ‪@beta1hat.bsky.social‬ @mabuchner.bsky.social‬ ‪@i4replication.bsky.social‬

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Reposted by Paul Goldsmith-Pinkham, Jens Rommel

Journal of Public Economics @jpube.bsky.social · Aug 25

Just published in @jpube.bsky.social:

"Wealth tax enforcement in Sweden: Filing requirements and pre-populated returns"

By Emmanuel Saez & David Seim

www.sciencedirect.com/science/arti...

#econsky #publiceconomics

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Reposted by Jens Rommel

Robert Finger @robertfinger.bsky.social · Aug 15

'A Scoping Review of Nudges for Enhancing Agricultural Policy'

New paper in Applied Economic Perspectives and Policy, led by Nadja El Benni and with Yanbing Wang, Jeanine Ammann, and Gabi Mack

Open Access doi.org/10.1002/aepp...

@agroscope.bsky.social @ethzwfsc.bsky.social

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