Introduction Closing supply chains refers to taking care of items once they are no longer desired or can no longer be used by their user. Smart management of closed-loop supply chains means profitable recovery of value from these items (products, functional components, materials or packaging). The company closing the supply chain may be the original equipment manuf- turer (OEM), a distribution partner or a third party not involved in the f- ward distribution. In recent years, the management of closed-loop supply chains has gained importance because of increased legislation on producer respon-...