Dominik Liebl
@dliebl.com
www.dliebl.com Professor of Statistics at Uni Bonn From 🥨🏔️🍻-Land. Economist socialized as nonparametric statistician #statistics #statsky #econsky #rstats
@ccfang819.bsky.social my PhD student @unibonn.bsky.social and coauthor of the below 👇 paper is now also here at bsky. Follow recommendation 😉
Dominik Liebl@dliebl.com · 7mo agoEvent-study plots in DiD are incredibly persuasive—but, honestly, not always honest. Why? If parallel trends or no anticipation fail, DiD estimates are biased. Testing against a zero-effect null then becomes misleading. 🚨New 📄: arxiv.org/abs/2512.06804 #CausalInference #EconSky #StatsSky #rstats
Event-study plots in DiD are incredibly persuasive—but, honestly, not always honest. Why? If parallel trends or no anticipation fail, DiD estimates are biased. Testing against a zero-effect null then becomes misleading. 🚨New 📄: arxiv.org/abs/2512.06804 #CausalInference #EconSky #StatsSky #rstats
These are the materials for our 1-semester course Introduction to Programming with R It's geared towards 1st-year bachelor students without any prior programming experience. #rstats discdown.org/rprogramming/
discdown.org
Chencheng Fang, Dominik Liebl: Making Event Study Plots Honest: A Functional Data Approach to Causal Inference https://arxiv.org/abs/2512.06804 https://arxiv.org/pdf/2512.06804 https://arxiv.org/html/2512.06804
👋 Our first post! We are the #ResearchData & #OpenAccess Service Centers at @unibonn.bsky.social. We: 📖 fund OA publications 📝 consult & train on data management 🎓 offer tools for processing & sharing research data We'll share insights, resources & updates from our work! #OpenScience #UniBonn
StatFest 2025 is here and it's free and virtual. Undergrad students from historically underrepresented groups connect with industry experts in statistics, data science, and academia. Sept. 11, 18, & 25. Register today. community.amstat.org... #StatFest2025 #DataScience #Statistics #STEMCareers
🎉Congratulations to our graduates 2025! Forever Uni Bonn - Over 2,000 graduates celebrated the 20th anniversary of its Universitätsfest — with over 5,000 of their friends and family — a new record. Read more www.uni-bonn.de/en/news/20-j... (c) Marc John/Uni Bonn #UniversityOfBonn #ForeverUniBonn
Nice thread on simultaneous confidence bands (SCBs) by @noahgreifer.bsky.social ! Not many papers explore varying critical values—despite cool uses like narrower or fairer bands. Bit of shameless self-promo if you're into this 😉: academic.oup.com/jrsssb/artic... #econsky #statsky
Fast and fair simultaneous confidence bands for functional parameters
Abstract. Quantifying uncertainty using confidence regions is a central goal of statistical inference. Despite this, methodologies for confidence bands in
academic.oup.com
Noah Greifer@noahgreifer.bsky.social · last yr.Though the sup-t band is the narrowest, valid, simultaneous confidence band for a single c, it's not necessarily the narrowest band with correct coverage. That would require multiple values of c or asymmetric bands. But sup-t is powerful in its simplicity and ease of implementation.
🚨 Big milestone for Rdatasets 🚨 The web archive now hosts 3400+ free and documented CSV datasets. Fantastic for teaching and testing! And {Rdatasets} is a new #RStats 📦 for easy download and search Web archive: vincentarelbundock.github.io/Rdatasets R 📦: vincentarelbundock.github.io/Rdatasetspkg
Just learned something new. You can buy spurious citations that will show up on Google Scholar -- and people do.
John Holbein@johnholbein1.bsky.social · last yr.Nice. arxiv.org/abs/2402.04607
New working paper: "Testing the Missing Completely at Random Assumption for Functional Data," joint work with Max Ofner*, S. Hörmann and D. Kraus. As far as we know, it's the first paper on testing MCAR for functional data. *Look out for this smart guy.
ArXiv Paperboy (Stat.ME+Econ.EM)@paperposterbot.bsky.social · last yr.link 📈🤖 Testing the Missing Completely at Random Assumption for Functional Data (Ofner, H\"ormann, Kraus et al) We consider functional data which have only been observed on a subset of their domain. This paper aims to develop statistical tests to determine whether the function and the domain over
Grace Wahba, "the mother of smoothing splines," won the International Prize (aka the Nobel) in Statistics #stats for her representer theorem. youtu.be/8Ae_QzwwR_U?... So well deserved! I guess, one could also give her the price again in two years for her work on Generalized Cross-Validation.
Played through Sportify? We got you. Pointed and scientific - that's the #Hypothesis #Podcast from the #UniversityofBonn. Listen now: www.uni-bonn.de/de/universit... For our next episodes: Which topic would interests you the most?
🚨 To all scientists interested in functional data analysis: Functional Data Analysis: Workshop in Honor of Alois Kneip Date: June 12-13, 2025 Registration: Open until January 26, 2025 www.mathematics.uni-bonn.de/hcm/events/w... Pls help spread the word. 🙏
"I have a feeling he is deceiving himself." (I know it's old, but it's such a beautiful short story.) #statssky #econsky stats.stackexchange.com/questions/18...
Riesige Glückwünsche an Claudia Goldin zum diesjährigen Nobelpreis für Wirtschaftswissenschaften! Worum geht es bei ihrer Forschung? Ein paar Eindrücke aus ihrer Forschung zum Arbeitsmarkt (auf deutsch).
There is a new feature to show some posts from other feeds in your following feed. 📈📉
Teaching intro data science or stats in environmental sciences / ecology this fall? The lterdatasampler package is now on CRAN, with curated real world datasets from the US Long Term Ecological Research program! Check it out: lter.github.io/lterdatasamp...
I recently experimented with Quarto, the next-gen rmarkdown. It can be used to produce wonderful online lecture sites combining theory with R code. This is a refresher in matrix algebra for my econometrics students: matrix.svenotto.com
Crash Course in Matrix Algebra
A Refresher on Matrix Algebra for Econometricians with Implementation in R
matrix.svenotto.com
Why do academics throw all scientific standards out of the window as soon as the topic is “AI”?
