From: Comparative Efficiency Analysis of OECD Health Systems: FDH vs. Machine Learning Approaches with Efficiency Analysis Trees (EAT and RFEAT)
FDH & EAT
FDH & RFEAT
EAT & RFEAT
Correlation coefficient of efficiency score
0.8561
0.8840
0.8813
Correlation coefficient of efficiency ranking
0.6852
0.7842
0.8286