![]() ![]() The use of supply chain DEA models in operations management: A survey Finally, we present some concluding remarks and opportunities for future research. We present each category along with its mathematical formulations, main applications and possible connections with other categories. We define four categories: typical, relational, network and game theoretic DEA models. Furthermore, we study some variations of these models such as models with only intermediate measures between first and second stage and models with exogenous inputs in the second stage. ![]() ![]() We analyze the simple case of these models which is the two-stage models and a few more general models such as network DEA models. The second aim is to point out the significance of these models for the decision maker of a supply chain. The first task is to survey and classify supply chain DEA models which investigate these internal structures. Standard Data Envelopment Analysis (DEA) approach is used to evaluate the efficiency of DMUs and treats its internal structures as a “black box”.
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