Piotr Zielonka works in the Institute of Biology at Warsaw University of Life Sciences, Poland. He conducts research in behavioral economics, having published two books in Polish: ‟The Stock Market and Psychology,” which appeared in five editions and ‟The Reference Point” (two editions). Piotr Zielonka is a co-editor of the book ‟Large Risks with Low Probabilities” published in London in 2017.