Mostly OM is an annual international workshop sponsored by the School of Economics and Management of Tsinghua University, focusing on the state-of-the-art research in Operations Management (OM), broadly defined. Mostly OM aims to provide a forum for researchers, from China and overseas alike, to foster interaction and exchange ideas, learn from each other new methodologies and applications, and explore opportunities for collaboration. The 2014 workshop will take place in Tsinghua campus, June 13-14, 2014.