Unstatistic of the Month

Since 2012, the economist and RWI vice president Thomas Bauer,  Gerd Gigerenzer, and the statistician Walter Krämer - joined by Katharina Schüller, managing director and founder of STAT-UP in 2018 - have been writing a monthly column that scrutinizes published statistics and their interpretation in the media. Their mission is to promote an objective and rational approach to data and facts.

Source: RWI Leibniz-Institut für Wirtschaftsforschung

Black microphone mounted on a silver adjustable arm against a pink background.

Listen to the Unstatistic Podcast (German) on Spotify

August 2025

When statistics become a political issue: How unfounded accusations of manipulation damage democracy

Statistics form the basis for important decisions in politics and economics. When allegations of statistical manipulation are made, more than just rows of numbers begin to unravel. Two recent cases show how heedlessly accusations against the Federal Statistical Office are handled in Germany—and why objectivity is now more important than ever. Read More

July 2025

Relative risks, absolute confusion: Why mammography screening does not deliver what it promises

The “Unstatistic of the Month” for July is the systematic misinformation about mammography screening. A prominent example shows how supposed successes are exaggerated and potential harms are concealed — to the detriment of informed patient decisions. Read More

June 2025

Whit Monday is worth €8.6 billion – really?

Whether fewer public holidays could boost Germany's gross domestic product is a perennial debate – most recently with an eye on Whit Monday. Some estimates reckon with up to €8.6 billion. The “Unstatistik des Monats” (“Unstatistic” of the Month) for June asks: What is the truth behind such calculations? And how reliable are the figures? Read More

Books in German:

Jede/r sollte ein wenig statistisches Denken beherrschen. Und da gibt es kaum einen einfacheren und amüsanteren Einstieg in die Materie als dieses Buch.
— Deutschlandradio Kultur
The cover of a book titled "Warum Dich Nicht Doof Machen Und Ganz Nicht Tot" by Bauer Gigererzer Krämer. The background features sketches of graphs, charts, and doodles related to business and statistics. A red circle highlights the phrase "Der SPIEGEL Bestseller" and a black box emphasizes the topic about risks and side effects of unstatistics. The publisher is Goldman.
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Book cover titled 'Grüne fahren SUV'. It features a white background with doodle sketches of various business and tech icons in light gray. The title is in large, bold red and black text, with author names Bauer, Gigerenzer, Krämer, and Schüller at the top. There is a red label indicating 'SPIEGEL Bestseller-Autoren' and a black label with white text 'campus' at the bottom.
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