从地缘经济来看，大都市圈一般具备明显的地域经济优势，具有明显的金融中心龙头效应，占有GDP的绝对比重。

From the view of the geo-economy, the metropolitan regions generally have obvious regional economic superiority and leading effect of the financial center, ahd occupy absolute proportion of GDP.

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大湄公河次区域合作为地缘经济学提供了一份难得的“蝴蝶效应”案例。

And Greater Mekong Subregion economic Cooperation Program (GMS) is a good case of "butterfly effect" in geography economics.

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