运用现代经济学的分析框架去分析现实问题，是经济学研究的发展趋势。
Applying modern economics analysis framework analyzes present issues, which is development tendency of economic study.
本文在充分把握未来可能发展趋势的基础上，以公路网规划方案评价为研究对象，试图从经济学的角度，建立公路网评价的理论及方法。
According the future development trend, This paper takes highway network for research object and the theory and generate method of highway network evaluation from the view of economics.
从港口经济学和经济地理学的角度分析了武汉港的建港条件，论述了其今后发展趋势。
In this paper, from the Angle of port economics and economic geography, the advantages of building Wuhan port are analysed, and the trend of Wuhan port development in future is put forward.
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