Analysis of Efficiency Changes of IT-Service Companies Using DEA-Window

Abstract

This study investigates and analyzes the efficiency of IT service providers over 7 years. It analyzes the efficiency of companies every year, predicts the direction of efficiency through trend analysis, and considers countermeasures accordingly. In addition, stability analysis is carried out by examining the fluctuation of the efficiency of the company for 7 years. It is possible to consider the measures against the sudden change of efficiency. The purpose of this study is to predict the efficiency and to cope with the change by considering the dynamic efficiency as well as the static efficiency of the enterprise. DEA-Window methodology is applied for this study.