Marx put forward to be the marketing cost theory of core with marketing cost, and Kesidi gave what with trading charge is core to trade charge is academic.

马克思提出了以流通费用为核心的流通费用理论，而科斯提出了以交易费用为核心的交易费用理论。

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This part illustrates the relationship between environment cost and international trade in theory, so derivates the present frame of environment measures.

此部分先论述了环境成本与国际贸易之间的关系并对其进行理论分析，从而引出了现在的环境措施体系框架。

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This paper not only introduces the theory of extension method and matter-element, but demonstrates trade-off analysis between efficiency and cost by means of extension theory.

介绍可拓学及物元理论，提出用可拓工程方法对武器装备效能-费用进行权衡分析。

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In theory, global trade should cause prices in different countries to converge: the prices of low-cost producers should gradually increase as wages rise (ie, China's falling prices were a temporary anomaly), while the prices of high-cost producers should fall.

ECONOMIST: Why China is not to blame for the surge in global inflation