Sakouvogui, Kekoura; Shaik, Saleem; Addey, Kwame Asiam - In: Open economics 3 (2020) 1, pp. 50-69
efficiency, determines the number of clusters via Gap statistic and Elbow methods. We use the December quarterly panel data … results show differences in the estimated DEA efficiency measures with and without a clustering approach. Furthermore, using …-adjusted DEA model provides statistically better efficiency measures in comparison to the DEA model without a clustering approach. …