A Co-Plot- based Efficiency Measurement to Commercial Banks

摘要

For the issue of the lack in plotting analysismethod in the research of DEA, this paper introduces a newgraphic method—Co-Plot. It can demonstrate DMUs andvariables visually in two-dimensional space, and enable theanalysis of them at the same time. By applying the ratiorelationship among variables, Co-Plot can be combined withDEA in a way to display the results of DEA easily andintuitively. Specific steps for graphing by Co-Plot are given,and the effectiveness of the method is proved through anillustration of commercial banks.