Title: BayesFM: Bayesian Exploratory Factor Analysis Author: Remi Piatek Affiliation: University of Copenhagen Abstract: Bayesian Exploratory Factor Analysis (befa) is an approach to dedicated factor analysis with stochastic search on the structure of the factor loading matrix. The number of latentfactors, as well as the allocation of the manifest variables to the factors, are not fixed a priori but determined during MCMC sampling.