Sueyoshi T and K Sekitani (2007). “Measurement of Returns to Scale Using a Non-Radial DEA Model: A Range-Adjusted Measure Approach.” EJOR 176(3): 1918-1946.
Sueyoshi T and K Sekitani (2007). “Measurement of Returns to Scale Using a Non-Radial DEA Model: A Range-Adjusted Measure Approach.” EJOR 176(3): 1918-1946.