Associate Professor Przemyslaw Jeziorski

Economist Przemyslaw Jeziorski, who applied his exceptional curiosity, analytical talents, and sense of justice to questions about a range of markets—and to helping his students grow comfortable with data—died July 4 on the outskirts of Athens, Greece. He was 43.  

Greek police have said Jeziorski was the victim of a homicide.

A native of Poland, Jeziorski often went by Przemek (Pshemek) or PJ. He held the Egon and Joan von Kaschnitz Distinguished Professorship in Business Administration and was a leading expert in quantitative marketing, industrial organization, and the economics of digital markets. 

“He had great influence on the marketing field not only through his research but through his energetic presence and optimism combined with a healthy dose of skepticism,” said Professor Zsolt Katona, who helped hire Jeziorski to the Haas Marketing Group in 2012.

Jeziorski, a father of two, also had a passion for teaching, and during his 13 years at Haas he taught data analytics skills to more than 1,500 MBA and PhD students.

His teachings have proven especially valuable in the workplace, said Scott Diddams, MBA 24, a product manager at Microsoft. “Sharing and applying the learnings from PJ’s class got me the job that I currently have and a couple promotions on top,” he said. “A great professor not only teaches the lesson but cultivates within their students the sense of curiosity that sets them on the path of continuous discovery and learning, one that persists long after classes are finished. Dr. PJ was one of these professors.”  

Jeziorski’s brother, Łukasz, with whom he was very close, said it was Jeziorski’s dream to live in the U.S. He earned bachelor’s and master’s degrees in quantitative methods and information systems from the Warsaw School of Economics then moved to the States for two more master’s degrees, in economics and mathematics, from the University of Arizona before earning a PhD in economic analysis and policy at Stanford. He brought Łukasz to the U.S. for his first trip abroad; they later traveled the world together. 

Jeziorski is survived by his mother and brother, both of Gydnia, Poland, and his twin children, Zoe and Angelo. He was predeceased by his father in June 2025.

The family has set up a fundraiser (haas.org/pj-donations) to help pay for costs associated with Jeziorski’s death. Read a full obit: haas.org/pj-obit.