Estimating the confidence intervals for DEA efficiency scores of Asia-Pacific airlines

Table 3 also indicates a decreasing trend in the average efficiency of the sampled airlines, where the average \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$DEAS_{i}$$\end{document} D E A S i dropped from the level of 0.994 in 2008 to 0.973 in 2015.

also in 47,180 other papers