Juan G. Villegas is Associate professor of the Department of Industrial Engineering at Universidad de Antioquia (Medellín, Colombia). His current research interests include exact and (meta)heuristic methods applied to multi-objective optimization, facility location, and vehicle routing problems. Professor Villegas is member of the research group INCAS (Innovación y gestión de Cadenas de Abastecimiento)  of the Universidad de Antioquia. From october 2014 to augsut 2017 he was the president of the Colombian Operational Research Society (ASOCIO-Asociación Colombiana de Investigación Operativa). Currently, he is part of the editorial board of Operations Research Perspectives an exciting new open access journal in the field of Operations Research and Management Science.