Gross job and worker flows in Russian industry are studied using panel data from a survey of 530 firms selected through national probability sampling. The data permit examination of several crucial measurement issues, including the timing and definition of employment and the role of reorganizations, and they contain rich information on firm characteristics. We find that new and reorganized firms display larger flows than unreorganized enterprises. Product market dispersion and managerial and dispersed outsider ownership are associated with greater worker churning, and unionization and concentrated outsider ownership with less. Copyright (c)The European Bank for Reconstruction and Development, 2003.