A closed-loop supply chain is defined as the combination of both forward and reverse supply chains. However, it is in reverse supply chains that environmental issues are emphasized. In this research, a closed-loop supply chain network is designed and optimized to reduce the impact of bottled...

Purpose: Once a set of suppliers has been determined, according to criteria of quality, price and reliability, among others, there remains the problem of assigning orders to the selected suppliers, in order to cover the needs at the lowest cost. We consider the case in which the needs of a...