Sakouvogui, Kekoura; Shaik, Saleem; Addey, Kwame Asiam - In: Open Economics 3 (2020) 1, pp. 50-69
This paper improves on the issues of extreme data points and heterogeneity found in the linear programming data envelopment analysis (DEA) by presenting a cluster-adjusted DEA model (DEA with cluster approach). This analysis, based on efficiency, determines the number of clusters via Gap...