Mine Performance Assessment by Means of Stochastic Frontier Analysis

Table 3

Technical efficiency, Stage-1.

Panel A: descriptive statistics	Efficiency scores
Min	0.70
Max	0.93
Mean	0.86
Standard deviation	0.05
Panel B: distribution of efficiency measures
Efficiency scores	Percentage (%)
0.80	13.04
0.85	26.09
0.90	34.78
0.95	26.09
1.00	0.00