规模经济是产业组织理论的重要概念,但以往对规模经济的研究主要集中在制造业领域,而对于像民航运输业这样的交通业的研究并不多见,而且结论也存在争议。从规模经济的基本内涵出发,结合民航运输业的行业特点,构建了民航运输业的产出函数、成本函数和平均成本函数,得出了民航运输业具有规模经济性的结论,并构建了民航运输业规模经济边界模型。 Economies of scale are the important concepts of industrial organization theory. However, the previous studies on economies of scale mainly focused on the manufacturing sector. However, studies on the transportation industry such as civil aviation transportation are rare, and the conclusions are controversial. Based on the basic connotation of economies of scale, the output function, cost function and average cost function of civil aviation transportation industry are constructed according to the characteristics of civil aviation transportation industry. The conclusion is drawn that civil aviation transportation industry has economies of scale. Transport economy scale model.