Jens Rommel
LightNews LightNews
jensrommel.bsky.social
Jens Rommel
@jensrommel.bsky.social
1.5K followers 3.2K following 90 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
Posts Replies Media Videos
Reposted by Jens Rommel
maeunigoe.bsky.social
Extreme weather events can be costly for German farmers, in terms of yield losses and farm efficiency 💸
Here is our most recent publication: doi.org/10.1093/erae... by @moritzhartig.bsky.social, Silke Hüttel & @stefanseifert.bsky.social

@agrarunigoe.bsky.social @crc1502-detect.bsky.social
November 12, 2025 at 7:50 AM
Reposted by Jens Rommel
yanndemey.bsky.social
2025 Gorilla update 👋🦍: One student found the gorilla this time around (see details in thread below). BUT, I have an AI-related update that is too good not to share ... #EconSky 📉📈
October 30, 2025 at 1:51 PM
Reposted by Jens Rommel
danlewer.bsky.social
We wrote an article explaining why you shouldn't put several variables into a regression model and report which are statistically significant - even as exploratory research. bmjmedicine.bmj.com/content/4/1/.... How did we do?
A "methods primer" article in the journal "BMJ Medicine", titled "Factors associated with: problems of using exploratory multivariable regression to identify causal risk factors"
October 27, 2025 at 5:39 PM
jensrommel.bsky.social
Super-cool new paper, using an RCT to estimate the impact of information framing on eco scheme uptake: doi.org/10.1186/s401...
Screenshot of abstract and title, follow link for text access
October 27, 2025 at 6:45 PM
jensrommel.bsky.social
In a new article, we study acceptance of methane-reducing feed additives among Swedish dairy farmers; acceptance is high overall (low willingness-to-accept), i.e., feed additives are a cost-effective GHG mitigation measure in Sweden doi.org/10.1093/erae...
Title and abstract screenshot from paper; follow link for text
October 27, 2025 at 4:39 PM
jensrommel.bsky.social
In a new article, we test different behavioral interventions (and combinations) in four EU countries. Null results on "light green" eco-schemes.

doi.org/10.1093/erae...
Abstract and title; follow link for text
October 25, 2025 at 12:58 PM
Reposted by Jens Rommel
moritzfritschle.bsky.social
Cool methodological, new paper in #mousetracking in #econ research. #QOpen #agecon #DCE

Mouse tracking in a DCE can be a useful and valid tool 🔧 to uncover Hidden decision-processes without interfering with respondents decisionmaking. 💡
Q Open Paper: Validating Mouse Tracking in economic research
October 23, 2025 at 10:52 PM
Reposted by Jens Rommel
dingdingpeng.the100.ci
Gambetta & Origgi on the LL Game, in which agents prefer to deliver and receive (!) low quality.

This paper is absolutely savage but also feels uncomfortably relevant to parts of academia outside of Italy 👀

diegogambetta.org/wp-content/u...
Abstract We investigate a phenomenon which we have experienced as common when dealing with an assortment of Italian public and private institutions: people promise to exchange high-quality goods and services, but then something goes wrong and the quality delivered is lower than had been promised. While this is perceived as ‘cheating’ by outsiders, insiders seem not only to adapt to, but to rely on this outcome. They do not resent low-quality exchanges; in fact, they seem to resent high-quality ones, and are inclined to put pressure on or avoid dealing with agents who deliver high quality. The equilibrium among low-quality producers relies on an unusual preference ranking which differs from that associated with the Prisoners’ Dilemma and similar games, whereby self-interested rational agents prefer to dish out low quality in exchange for high quality. While equally ‘lazy’, agents in our low-quality worlds are oddly ‘pro-social’: for the advantage of maximizing their raw self-interest, they prefer to receive low-quality goods and services, provided that they too can in exchange deliver low quality without embarrassment. They develop a set of oblique social norms to sustain their preferred equilibrium when threatened by the intrusion of high quality. We argue that high-quality collective outcomes are endangered not only by self-interested individual defectors, but by ‘cartels’ of mutually satisfied mediocrities.
October 16, 2025 at 2:08 PM
Reposted by Jens Rommel
lakens.bsky.social
Call For Papers: Journal of Business Economics – Special Issue – Behavioral Ethics Under Review: Replications and Theoretical Foundations

Call for Regular Articles & Registered Reports

sbeonline.org/2025/10/call...
Call For Papers: Journal of Business Economics - Special Issue - Behavioral Ethics Under Review: Replications and Theoretical Foundations - Society for Business Ethics
Call for Regular Articles & Registered Reports Special Issue on “Behavioral Ethics Under Review: Replications and Theoretical Foundations” The Journal of Business Economics is currently receiving…
sbeonline.org
October 15, 2025 at 4:53 AM
Reposted by Jens Rommel
moritzfritschle.bsky.social
Job Alert for PhDs in #Agricultural #Economics 🚨

2 Positions open for PhD-Researchers at the Chair of Agricultural Economics at the University of Rostock with @sebastianlakner.bsky.social . Positions are for German-speaking individuals including teaching activities.
2 Wissenschaftliche/r Mitarbeiter/in (m/w/d) - Agrarökonomie
jobs.uni-rostock.de
October 13, 2025 at 2:32 PM
Reposted by Jens Rommel
edhagen.net
I'm starting to explore {simDAG}, a nifty #rstats package that has a nice API for specifying DAGs and then simulating data from them: robindenz1.github.io/simDAG/
Simulate Data from a DAG and Associated Node Information
Simulate complex data from a given directed acyclic graph and information about each individual node. Root nodes are simply sampled from the specified distribution. Child Nodes are simulated according...
robindenz1.github.io
October 13, 2025 at 4:14 PM
Reposted by Jens Rommel
gdiak.eu
📢 New publication 🚨🚨🚨

I am happy to share a new publication (open access) regarding farmers' intentions to adopt a DSS, combined with data from meteorological stations, for pest management: doi.org/10.1016/j.at...

Grateful to my amazing co-authors

#agriecon
Redirecting
doi.org
October 12, 2025 at 10:35 AM
Reposted by Jens Rommel
stevecicala.bsky.social
Welcome to Editorial Express
queenoliviaiii.com Queen Olivia III @queenoliviaiii.com · Oct 12
In honour of spooky month, share a 4 word horror story that only someone in your profession would understand.

“The tapes wouldn’t start”
zaichishka.bsky.social Eleanor G @zaichishka.bsky.social · Oct 12
In honour of spooky month, share a 4 word horror story that only someone in your profession would understand.

“Translate 'yoroshiku onegai shimasu'”.
October 12, 2025 at 1:23 PM
Reposted by Jens Rommel
alistair-munro.bsky.social
In October's Environmental and Resource Economics we honour Daniel Kahneman's legacy: Noel Zigrand Hoven & Karine Nyborg document how being observed increases pro-social behaviour but can also create substitution away from non-observable contributions. #EconSky
The Mixed Effects of Making Contribution Behaviors Observable - Environmental and Resource Economics
Environmental and Resource Economics - Voluntary contributions to public goods have been shown to increase when contribution behaviors become observable by peers. We examine the effect of social...
buff.ly
October 12, 2025 at 11:15 AM
Reposted by Jens Rommel
slu-econ.bsky.social
New article: "Swedish Consumers' Willingness-to-Pay for Plant-Based Proteins in Pasta Sauce: Preferences and Policy Scenarios"

doi.org/10.1002/agr....
October 11, 2025 at 1:51 PM
Reposted by Jens Rommel
jrgptrs.bsky.social
New DP @i4replication.bsky.social: Meta-analysis on green nudges correcting for publication bias. "Behavioral interventions on households and individuals are unlikely to deliver material climate benefits." www.econstor.eu/bitstream/10...
October 9, 2025 at 9:36 AM
Reposted by Jens Rommel
dariia.bsky.social
❗️Our next workshop will be on Oct 16th, 6 pm CEST titled Structural Bayesian Techniques for Experimental and Behavioral Economics in R& Stan by @jamesbland.bsky.social
Register or sponsor a student by donating to support Ukraine!
Details: bit.ly/3wBeY4S
Please share!
#AcademicSky #EconSky #RStats
October 10, 2025 at 9:14 AM
Reposted by Jens Rommel
moritzfritschle.bsky.social
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
October 8, 2025 at 10:29 AM
Reposted by Jens Rommel
michaelroth.bsky.social
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
October 5, 2025 at 10:21 AM
Reposted by Jens Rommel
p-hunermund.com
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...
October 3, 2025 at 7:33 AM
Reposted by Jens Rommel
robertfinger.bsky.social
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...
October 3, 2025 at 6:32 AM
Reposted by Jens Rommel
bartoszbartk.com
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“...
October 2, 2025 at 10:09 AM
Reposted by Jens Rommel
dingdingpeng.the100.ci
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
October 1, 2025 at 4:17 AM
Reposted by Jens Rommel
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 Jens Rommel
bartoszbartk.com
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.
September 30, 2025 at 11:53 AM