This repository contains the datasets and code used in the paper "Witch Trials" by Peter T. Leeson and Jacob W. Russ. "We argue that the great witch-trial era in Europe reflected the price-less competition between Catholic and Protestant churches for participation in the religious market in confessionally contested parts of Christendom. Analyses of novel data covering over 43,000 people tried for witchcraft in 21 European countries over a period of five and a half centuries and over 400 conflicts between modern European Catholics and Protestants support our theory. More intense religious market contestation led to more intense witch-trial activity. And relative to religious market contestation, the factors that existing hypotheses claim are important for witch-trial activity—climate, income, and state capacity—were not."