Sustainable Supply Chain Metrics: As we outline in Section 5.2.2, the existing perfor- mance management theory has several principles that makes it incompatible for implementation in a supply chain context. We suggested the use of composite indicators. More empirical research is required to validate the proposed framework. In addition more theoretical re- search is required to develop principles that take into account the intricacies of supply chain structures that distinguishes them from the management of individual firms.