Abstract

This paper makes a simple improvement to the DEA model, and analyzes the operating efficiency of China's airlines industry listed companies using the DEA model. We selected the main business costs, total assets and numbers of employees as input indicators, and selected earnings per share and main business income as output indicators. The results show that Air China and China Southern Airlines are DEA effective, having the best technical efficiency and the economies of scale unchanged. The way to improve efficiency is to strengthen the cost management under its current scale. China Eastern Airlines, Hainan Airlines and Shanghai Airlines are not DEA effective, having weak technical efficiency and the economies of scale increased, The ways to improve efficiency are to increase the economies of scale and

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