Professor of Law, Economics, and Business at @ETH Zurich. Associated with @ETH_CLE, Interested in #contractdesign, #lawecon, #lawtech

Zurich, Switzerland
Joined October 2017
1/6 Are robot judges perceived as less fair than human judges? Yes, but minimal human oversight can eliminate this human-AI fairness gap. Check out our new Working Paper “Mitigating the Judicial Human-AI fairness gap.”
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Four hundred years before behavioral economists ran lab experiments and HR departments debated “pay-to-quit” bonuses, William Shakespeare already had the answer. On the eve of battle in Henry V, the king makes a startling offer: 1/
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Alexander Stremitzer retweeted
Call for Papers: The 4th Annual Zurich Workshop in AI+Economics to be held Dec 5-6, 2025, hosted by ETH Zurich and University of Zurich. illuminating keynote to be given by @testingham (OpenAI) organized with @sergallet @YanagizawaD @joachim_voth Info: eash.cc/AI-econ Submit (by Aug 15th): eash.cc/AI-econ-sub-2025
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Alexander Stremitzer retweeted
Introducing an eval dataset of 4,886 law school exam questions. See if your AI can answer them!!
1/5 How good are AI Model’s Reasoning Abilities? We have created LEXam, a legal reasoning benchmark derived from real law exams available in English and German. @eth_cle @ellliottt @YoanHermstruwer @joelniklaus @OpenAI @GoogleAI @deepseek_ai @AnthropicAI @grok @AIatMeta
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Alexander Stremitzer retweeted
Check out LEXam, our new Legal Reasoning benchmark! Thanks for the great collaboration @NJingwei, Jakob, Etienne, Yang, Yoan, @YinyaHuang, @akhtarmubashara, Florian, Oliver, Daniel,@LeippoldMarkus, @mrinmayasachan, @Stremitzer_Lab, Christoph Engel, @ellliottt, and @joelniklaus!
🚨Time to push LLMs further! 📚LEXam: The legal reasoning benchmark you’ve been waiting for: • 340 exams, 116 courses (EN/DE) • Long-form, process-focused questions • Expert-level LLM Judges • Rich meta for targeted diagnostics • Contamination-proof, extendable MCQs [1/6]🧵
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1/5 How good are AI Model’s Reasoning Abilities? We have created LEXam, a legal reasoning benchmark derived from real law exams available in English and German. @eth_cle @ellliottt @YoanHermstruwer @joelniklaus @OpenAI @GoogleAI @deepseek_ai @AnthropicAI @grok @AIatMeta
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4/5 𝑳𝑬𝑿𝒂𝒎 rigorously evaluates AI models' legal reasoning abilities by emphasizing both outcome correctness and reasoning process. It was created through expert extraction and curation, 𝑳𝑬𝑿𝒂𝒎 contains 2,841 open-ended and 2,045 multiple choice questions (MCQs).
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2/5 Here are the main results:
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3/5 Discover our findings and benchmark your models with 𝑳𝑬𝑿𝒂𝒎! - Project link: lexam-benchmark.github.io/ - Find more details in our paper: arxiv.org/abs/2505.12864 - Explore our datasets: huggingface.co/datasets/LEXa…
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6/6 However, our findings also raise the concern that nominal human oversight could be used to legitimize substantively unfair algorithmic procedures in the eyes of ordinary citizens.
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