5. Conclusion
Prior studies have examined the impact of the asset-light strategy on firm performance, with positive, negative, or inconclusive results being found. This study investigates the association between the degree of asset-lightness and the dynamic efficiency of global airlines. With respect to dynamic efficiency, we adopt the longitudinal view of the production process to assess the dynamic efficiency of global airlines, considering carry-overs that are carried from one term to another. As for the asset-light valuation model, we apply the approach as identified in (Liou, 2011). The DEA outcomes show that airlines were not efficient in utilizing their inputs to generate outputs, especially during financial crises. The regression results support our prediction that the degree of asset-lightness positively affects dynamic efficiency. By outsourcing, a firm is able to reduce its capital investment in a number of tangible assets and thereby increase both ROA and ROE.