iiinova — where your digital self keeps evolving

Leo Ahrens @leoahrens.bsky.social · 19/11/2025

This is the first time I see one of my packages used in an actual journal article. Cool stuff! This is the fedistr Stata command for those wondering.

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Leo Ahrens @leoahrens.bsky.social · 17/11/2025

Free eprints for my JEPOP article www.tandfonline.com/eprint/JN5C9...

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Leo Ahrens @leoahrens.bsky.social · 10/11/2025

Frank and I have a new-ish chapter out reviewing the electoral politics of welfare state reforms. A preprint is available on my website (leoahrens.eu/publications). doi.org/10.4337/9781...

doi.org

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Leo Ahrens @leoahrens.bsky.social · 02/11/2025

I drafted a correlation heatmap package for Stata. Does something like this already exist? I want to make sure before I put more work into this.

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Alexander Horn @alexanderhorn.bsky.social · 11/09/2025

Today at 2 and tomorrow at 12, these two panels take place at @apsa.bsky.social. The papers are so intriguing that I finished reading them pre-arrival! 😱 @leoahrens.bsky.social & me also present. Including work on the class biases in pledge breaking #APSA2025 #polisky @apsainequality.bsky.social ‬

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Leo Ahrens @leoahrens.bsky.social · 10/07/2025

What do you think about Achen/Bartel's Democracy for Realists? I really liked the book but its implications are dire for my research field (& my past research), which commonly relies on the "folk theory" of democracy

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Alexander Horn @alexanderhorn.bsky.social · 04/07/2025

1/3) 📣Out in Party Politics: We trace the equal rights and economic equality positions of 69 center-right and far-right parties since 1970 in 12 countries. We find that center right parties did not react to/address equal rights concerns and economic inequality journals.sagepub.com/doi/epub/10....

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Alexander Horn @alexanderhorn.bsky.social · 23/06/2025

📬🚩 Our article on parties' programmatic responses to inequality - and more often the lack of responses - will come out in APSR! Here is the @excinequality.bsky.social working paper: kops.uni-konstanz.de/bitstreams/4... with @klueserthan.bsky.social & Martin Haselmayer 🧗🙏

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Alexander Horn @alexanderhorn.bsky.social · 14/03/2025

Did German left parties abandon economic equality in favor of equal rights, as the diagnosis of the "Lifestyle-Left" suggests? Analyzing party programs since 1970, we caution against sweeping claims in Unequal German Democracy (open access). 3 key qualifications👇 www.tandfonline.com/doi/full/10....

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Leo Ahrens @leoahrens.bsky.social · 06/06/2024

I got the comment "this study is not worthwhile because you cannot claim clausality from cross-sectional data" in a review. I'll share my response here. Unfortunately the reviewer dropped out of the pool - I am interested in what you think. Thread. polisky cpesky

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Leo Ahrens @leoahrens.bsky.social · 19/05/2024

I have a new section on my website where I share Word/Powerpoint presets for articles and slides. Visit leoahrens.eu/formatting-p....

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Leo Ahrens @leoahrens.bsky.social · 17/05/2024

I have a new research note out in JEPOP. I argue that higher government quality leads to a stronger rift in public attitudes on redistribution. Here’s a thread summarizing my argument and findings. doi.org/10.1080/1745... polisky cpesky

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Tobias Rüttenauer @ruettenauer.bsky.social · 03/05/2024

🥳New pre-print on #PanelData Analysis with @nicolekapelle.bsky.social Explore the power of tracking between-person differences & within-person changes over time📈🧐 with an example on #Marriage & #SexualSatisfaction Link: doi.org/10.31235/osf...

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Leo Ahrens @leoahrens.bsky.social · 28/03/2024

Frank Bandau and I analyze whether governments experience electoral consequences after PIT and VAT tax reforms in a new Electoral Studies publication. Below is a thread summarizing our findings. Open access: doi.org/10.1016/j.el...

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Leo Ahrens @leoahrens.bsky.social · 28/03/2024

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Leo Ahrens @leoahrens.bsky.social · 22/03/2024

I just published a lit review on the impact of public opinion on political behavior, politics, and policies. It focuses on CPE research. Here is a thread that summarizes the main points. Open access: doi.org/10.1007/s413...

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Heiner Salomon @heinersalomon.bsky.social · 21/03/2024

This seems like a great package for Stata.

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Leo Ahrens @leoahrens.bsky.social · 19/03/2024

I sent a 1000DPI file to the journal but the figure ends up looking like this in the pub (ok but not great). I only use pixelated images w/ opaque elements (eg the scatter points here). Why don't journal accept a vector file format that supports opacity, such as EMF?

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Leo Ahrens @leoahrens.bsky.social · 17/01/2024

I want to use an instrumental variable design but I have several IVs and not one. I read that this can lead to issues. How would I go about combining the IVs into one?

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Leo Ahrens @leoahrens.bsky.social · 10/01/2024

Here is a long thread about modelling clustered data, focusing on issues surrounding coefficient and standard error estimation and weighting. Let me know what you think. I would really like to know if my conclusions are correct because they often go against the grain in PolSci.

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Paul Hünermund @p-hunermund.com · 30/12/2023

💡Glad to see this paper with Beyers Louw finally published: "On the Nuisance of Control Variables in Causal Regression Analysis" (preprint available on arXiv). doi.org/10.1177/1094...

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Clément de Chaisemartin @cdechaisemartin.bsky.social · 21/12/2023

Happy to release new version of "Difference-in-Differences for Continuous Treatments and Instruments with Stayers", with Xavier, Félix, and Gonzalo. Yet another DID estimator? Yes, but this one handles treatments & IV continuously distributed at every period, like tariffs or taxes.

papers.ssrn.com

Difference-in-Differences for Continuous Treatments and Instruments with Stayers

We propose difference-in-differences estimators for continuous treatments with heterogeneous effects. We assume that between consecutive periods, the treatment

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Leo Ahrens @leoahrens.bsky.social · 21/12/2023

An update of ISOCODES is available Includes - various fixes to improve matching based on user feedback - improved notifications on fuzzy/failed/double matches to spot potential errors Install: net install isocodes, from("https://raw.githubusercontent.com/leojahrens/isocodes/master") replace

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Leo Ahrens @leoahrens.bsky.social · 13/12/2023

I’m releasing ISOCODES, a new Stata package to generate standardized country code variables. Feed in a string variable identifying countries and isocodes outputs numeric/2-3 letter codes (ISO3166) or full country names. I’ll give you a short motivation and rundown below.

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Leo Ahrens @leoahrens.bsky.social · 07/12/2023

I re-submitted an R&R some months ago and I can see in the online system that all reviews arrived about 5 weeks ago. Is it ever ok to get in touch in such a situation? I can only imagine the work load of an editor, but still. Touchy subject.

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Leo Ahrens @leoahrens.bsky.social · 24/11/2023

For those who haven't seen it on Twitter, I wrote a Stata command for scatter plots with fit lines. It's quite versalite, eg allowing you to plot scatter points that are binned and/or adjusted for covariates. See full instructions on the command and how to install at: github.com/leojahrens/s...

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Leo Ahrens @leoahrens.bsky.social · 20/11/2023

I'm writing a review piece on the CPE view that public opinion is an exogenous force that shapes politics and policies. Can you think of influential works that (implicitly) think like this? Constrained partisanship model, insider/outsider theory...

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Leo Ahrens @leoahrens.bsky.social · 08/11/2023

I've been working on typesetting presets for preprints. I can't decide which version I prefer - colorful sans serif (easier to read) or classic serif (looks very official). What do you think? PM me if you are interested in this - it's done in Word.

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Leo Ahrens @leoahrens.bsky.social · 27/09/2023

@profmusgrave.bsky.social not sure if this is the correct way to do this - could you add me to the PolSci feed please?

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