Secondly, the paper proves the necessity and possibility of Sichuan-Chongqing Circle forming from the point of the comparative advantage and competitive advantage theory mainly.
其次，从理论方面论证川渝经济圈形成的必要性和可能性，主要运用比较优势和竞争优势的理论进行论证。
The technological progress of the industry trades develop faster that have the resource advantage and marketing demand, which accelerate the forming of Sichuan-Chongqing Circle.
两个地区自然资源比较优势明显的行业、市场需求大的行业技术进步较快，技术进步促进了川渝经济圈的形成。
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