The four positions are part of two large research projects in which the PhD candidates will work together with companies, permanent staff and a number of post-docs. The positions are funded by the NWO programme Sustainable Logistics: www.nwo.nl/financiering/onze-financieringsinstrumenten/magw/duurzame-log... The PhD candidates will work in the Department of Operations, one of Europe’s largest research groups in Operations.