Stage efficiency evaluation in a two-stage network data envelopment analysis model with weight priority

摘要: Abstract Conventional DEA models treat the entire production system as a black box and ignore its internal structures. To address this issue, many studies have examined efficiencies of two-stage systems in which all outputs first stage are only inputs to second stage. Based on game theory, non-cooperative model centralized were developed for such network structure. However, with multiple optimal solutions model, an assumption is required whether or should be assigned absolute priority optimization. In cases, certain circumstances might exist one does not completely dominate other paper, we develop methodology assessing overall by considering different DMU-specific degree given stages. Particularly, can deemed special cases. Moreover, compare proposed approaches existing approaches, indicates that our greatly reduce computational burden. Two empirical examples used demonstrate approach.