Performance evaluation for airlines including the consideration of financial ratios

Most previous studies concerning airline performance evaluation focus merely on operational performance. Financial performance, however, which might directly influence the survival of an airline is usually ignored. The absence of financial ratios will directly lead to biased assessment. This paper tries to construct a performance evaluation process for airlines with financial ratios taken into consideration. First, a conceptual framework is redeveloped, based on the one created by Fielding et al. to help form performance indicators involving both transportation and finance aspects. Second, to overcome the problems of small sample size and unknown distribution of samples, the grey relation analysis is used to select the representative indicators and the TOPSIS method is used for the outranking of airlines. Third, the organizational characteristics of an airline are used to divide the total performance into three major departments of an airline: production, marketing, and management. The division of total performance is helpful for operators to recognize the performance of a department of an airline and to identify the responsibility of a department. Finally, a case study is conducted using the example of Taiwan's five major airlines. The empirical result shows that performance evaluation for airlines can be more comprehensive, if financial ratios are considered.