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为改善中小机场普遍亏损现状，基于机场和城市的发展需要，本文研究中小机场的市场开发问题.首先根据产业关联的理论和投入产出分析方法，分析了航空运输业的产业关联情况，采用直接消耗系数评价各类产业对航空运输的需求.然后结合灰色关联度，提出一个新指标——航空运输关联产值，以此来衡量两个城市之间航空运输的市场规模.最后得出结论,不同的行业对航空运输的需求不同，直接用两个城市的GDP来预测两者之间的航空运输需求是不合理的；两个城市之间的航空运输关联产值越高，开通航线的可行性就越大或者增加航班量的必要性就越大.这些结论对于中小机场进行市场开发有一定的指导作用.

Market Development of Medium and Small Airports Based on Industry Relation

This paper investigates market development of medium and small airports based on the demand of airports and cities’ development. The industry relation of air transportation is analyzed by the industry relation theory and the input-output analysis. Direct consumption coefficient is used to measure the consumption of air transportation from every category. Then a new index, air transport relational value between two cities, is put forward to describe the market scale of air transportation. Two conclusions are drawn: (1) there are different air transportation demands from different industries; (2) the higher the air transport relational value between two cities is, it is more likely to open the air route and increase the number of flights. These have practical guidance to market development for medium and small airports.