The report from air transportation group in 2008 indicated that air transportation industry was the main contributor to the global economic growth. In 2006，it had carried more than 2.2billion passengers and accounted for 35% of the global international trade amount，it had created 32million job opportunities and about 3.56 trillion dollars’ economic benefit which accounted for 7.5% of the world GDP. In the year 2002，the Europe Department of International Airport Associate indicated in its report that as the motive force of inland and regional development，the contribution of airport to the regional economy had been reflected in the leading role of economic growth and social employment. Appord and Kasard’s（2013）study on the employment of the 25 American busiest airports showed that there were 3.1million employment opportunities in 4 kilometers around the airport，4.5million employment opportunities in 8kilometers around the airport，and there were 19million employment opportunities（which account for 17.2% of the American total employment opportunities）in 16kilometers around the airport. Cao Yunchun（2009）put forward that by the continuous interactive function among the airline network，ground network，social environment，and hinterland economy，airport economy had constantly played roles in attracting，spreading，driving，supporting and feeding back. The airport economic zone has taken full advantage of its interior land to introduce the elements such as preferential policy，supporting finance，management system and human resource，used the airline network and flows of people and products of the airport to form the high-end industrial clusters，and utilized the domination effect，multiplier effect and diffusion effect of the growth pole to make interaction with the interior land and to accelerate the regional economic development.

1.The airport economy changes the regional elements endowment of region development in the micro scale

In the support of a certain production mode，the elements endowment characteristics of a regional economic structure are relatively stable in a certain period. The surrounding area of the aviation hub has become the regional core growth pole because of the fast development of airport economy around it. By the interactive function of the airport economy and hinterland economy，the newer and better production elements will be attracted and inputted into the hinterland economy，especially for the production and consumption elements which are much more sensitive to speed and time will aggregate to the adjacent area of the aviation hub rapidly and the scale effect has been forming，such elements includes the fashionable high-tech products and parts，the fashionable clothing，the most popular cosmetics，the fresh fruit，the high quality milk，the international logistics services and so on. If the international business environment is possessed and the global top 500 companies get in，such change will be more notable，even advance rapidly. As time goes on，these production elements will be accumulated continuously in the airport area and hinterland area，the human resource structure which is related to such elements will change significantly，the top talents which is related to the airport economy will be accumulated rapidly，these accumulation will enhance the elements endowment structure and industry structure of the area they located notably，such areas will possess more core competitiveness in the development of capital intensive industry and technology intensive industry. Meanwhile，some other changes will turn up consequently. The technology which is adopted by the enterprise will be more and more advanced，the capital demand will be increased，more listed companies will beentered or more local companies will be listed，the local production and market size will be changed a lot. Therefore，the development of airport economy will change the elements endowment of the hinterland area in the micro level，and will enhance the core competitiveness of the hinterland economy by promoting the regional capitalization standard and improving the industry structure.

2.To realize the industry coupling between the airport economy and the regional development in the medium scale

Once the aviation hub develops rapidly，the aviation industries which are matched to the aviation hub directly such as the aviation manufacture，aviation maintenance，aviation logistics，aviation service and aviation human resource training will rising imperatively. In such occasion，on the one hand，the hinterland enterprises will offer the matching products and extensional services for the aviation industry，which will help the other enterprises gain knowledge spillover，capital and human resources from the aviation industry，thus improving the technological and management standard of the regional enterprises in a short time，promoting their internationalization and expanding the market space rapidly. On the other hand，much logistic cost of aviation industry will be saved，the information exchange speed and veracity will be improved，the effective communication of stick knowledge will be promoted，thus effectively promoting the concept innovation and technology innovation of aviation industry，further strengthening the agglomeration effect and lock-in effect of special industrial cluster，and ultimately advancing the hinterland industry upgradation and its entering in the international market. Therefore，the industry interaction between airport economy and hinterland economy shows up as the industrial chain coupling，inter-industrial coupling and industry environment development coupling in the medium scale. And by these international industry coupling，the inner quality of regional economy development and the benefit of local people would be improved.

3.The airport economy promotes the growth of regional tax revenue and employment in the macro scale

In the analytical framework of Keynes macro-economy，the development of airport zone presents that the aviation industry output is increased，more and more labor is absorbed，much more consumption and fiscal revenue are brought in. In other words，the finance，trade，posts and telecom，communication，catering，exhibition，tourism are greatly developed by building aviation hub and its matching functionalzones such as the business districts，the export processing zones，the bonded areas，the logistics parks and the cross border electronic trade zones，thus absorbing a large number of population employment and improving the regional revenue. The increase of the salary of these employment populations and the local tax revenue has formed the economic radiation and diffusion objectively，and has brought a greater economy growth through the consumption and government purchasing behavior. In the 70 ^th global air transport summit hosted by the international air transport association on June 2，2014 in the capital of Katar，Tang Yanlin，who was the president of a council and CEO of the international air transportation association，pointed out in his presentation，“the aviation industry has been the lifeline of the global economy nowadays，it has brought 5.8million job opportunities and created 2.4trillion dollars in the annual economic activity. This year coinciding with the 100 anniversary of global commercial flights，the global aviation may create 18.7 billion dollars in the second hundred years and reach the highest level in history”. Apparently，the promotion function of airport economy to the global economy is significant in the macro scale.

In conclusion，although the airport economy is a new economic form，it plays a very import role in the global economy in the micro，medium and macro scale. The global air freight value has accounted for more than 1/3 of the annual value of freight. The practice of Memphis airport，Frankfurt airport，Schiphol Airport，Dubai airport，Incheon airport has shown to the world that，under the new historical conditions，the global transportation and regional development model have entered the fifth circulation，airport economy may change the development mode originated from the industrial revolution that the regional developing center existed in the coastal areas or riverside areas，and may open a new era that the development center will return back to the inland areas（figure1）. Parts of the inland areas which have concentrated population，abundant resources，rapid developing internet economy，big space cities，livable environment and appropriate business will become the new hotspot of regional development.