Se. Atkinson et Pw. Wilson, COMPARING MEAN EFFICIENCY AND PRODUCTIVITY SCORES FROM SMALL SAMPLES - A BOOTSTRAP METHODOLOGY, JOURNAL OF PRODUCTIVITY ANALYSIS, 6(2), 1995, pp. 137-152
This paper provides a bootstrap methodology for constructing confidenc
e intervals for means of DEA and econometrically estimated efficiency
scores, Malmquist productivity indices, and other similar measures in
small samples. The procedure is nonparametric since no distributional
assumptions are required. An empirical example is provided.