Ulf Zölitz
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ulfzoelitz.bsky.social
Ulf Zölitz
@ulfzoelitz.bsky.social
This fall, 1,499 students are enrolled in Econ 101 - looking forward to the semester ahead. 🚀📚
September 21, 2025 at 6:21 PM
📦 The impact of unconditional cash transfers on poverty and consumption
🤖How the introduction of AI affects worker productivity
🌍The effectiveness of the European emissions trading system
September 21, 2025 at 6:21 PM
Over the years my Econ 101 class has become much more empirically grounded.
We now discuss:
💘Experimental evidence on supply shocks in dating markets
🗳️How social preferences for redistribution shape voting
💊Unintended consequences of price collusion in the pill market🤰
September 21, 2025 at 6:21 PM
studentservices.uzh.ch
September 17, 2025 at 1:21 PM
You can read the full paper here:
www.ifo.de/DocDL/cesifo...

Shan, Zölitz & Backes-Gellner (2025). "Disconnecting Women: Gender Disparities in the Impact of Online Instruction" CESifo Working Paper #11997.
www.ifo.de
July 31, 2025 at 5:55 PM
Are these results new?
Our meta-analysis shows that we already knew that online instruction generally hurts performance (avg −0.20 SD), but with a median sample size of 491 observations, most prior work lacked the power to detect the hidden equity cost of online instruction.
July 31, 2025 at 5:55 PM
Why does online instruction disproportionally harm women? Survey & zoom attendance data show that women more strongly prefer in-person lectures. When assigned more online lectures, they perceive the course as less enjoyable, less comprehensible, and instructors as less engaging.
July 31, 2025 at 5:55 PM
The negative effect of online instruction on women is concentrated in math-intensive courses and lasting. Here, women exposed to more online earn fewer credits and become more likely to drop out of the program.
🚨🚨🚨
July 31, 2025 at 5:55 PM
For the first paper documenting a gender gap in the impact of online instruction, we must worry about the possibility of a false positive. It’s not! The gap remains highly precise after multiple-testing corrections (Bonferroni p=0.0036).
July 31, 2025 at 5:55 PM
More online instruction significantly lowers women’s performance, while leaving men’s unaffected. A 10 ppt shift toward online instruction decreases women’s exam score by 0.038 SD (p<0.001).
July 31, 2025 at 5:55 PM
IZA has been a key player in shaping labor economics, fostering collaborations, and providing a valuable platform for Economists worldwide.

Hard to accept that IZA will simply vanish.
March 6, 2025 at 2:07 AM
We have have scheduled 3 flyouts taking place in the second half of January.
December 19, 2024 at 1:45 PM
We received many excellent applications and have scheduled 11 interviews with candidates that fit the position.
November 25, 2024 at 9:21 AM