通过D - S模型赋予空间解释，新经济地理学对规模经济、运输成本、要素流动和投入产出联系的性质及其相互作用进行了深入的探讨。
New economic geography discusses the nature of economies of scale, transportation costs, factor mobility, input-output linkages and their interactions through the space explanation of DS model.
针对现有经济学、区域经济学和经济地理学研究交通运输成本的理论和方法的不足，提出了一种新的路网成本建模方法。
A new modeling method of road network cost is brought forward for the disadvantage of current theory and methods in studying economics, regional economics and economic geography.
本文正是基于这样的思路，运用区域经济学、经济地理学和交通运输方面的理论对武汉经济圈建设中的城际综合交通运输系统方面展开研究。
This article is based on the thought, researching Wuhan economic Circle intercity comprehensive transportation system with the theory of regional economics, economic geography and transportation.
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