This paper develops a new grouping approach in using data envelopment analysis as a framework to identify management groups and group performance leaders. The management group relies on the fact that branches grouped together present similar managerial preferences over performance goals and...

The banking industry has been the object of DEA analyses by a significant number of researchers and probably is the most heavily studied of all business sectors. Various DEA models have been applied in performance assessing problems, and the banks' complex production processes have further...

Natural gas hydrates (NGH) can only exist under low temperature (generally below 10 °C) and high pressure (generally above 3.8 MPa). The prerequisite for investigations of NGH sediments is a sampling technique that prevents its volatiles during recovery. In this paper, some pressure and...

With the aid of the VECM (vector error correction model), this paper studied dynamic effect of wheat price and flour price conduction mechanism in the wheat industry chain. Study results indicate that in a long term, wheat price and flour price have equilibrium relationship. Through threshold...