But even as they curb their enthusiasm for Doha, proponents of freer trade argue that CGE models do not show their cause to its best advantage.

但即便对多哈协定的期望有所减少，仍有不少自由贸易的支持者们认为CGE模型没有显示出他们的最大利益期望值。

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The faster you trade, the more you fritter away that advantage.

因此，交易越频繁， 就越浪费这一优势。

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The idea of comparative advantage has become the cornerstone of mordern thinking on international trade.

比较利益理论他成为现代国际贸易思想的基础。

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But there are fears that a prolonged and deliberate weakening of the Japanese yen could spark a currency war, if other countries that trade or compete with Japan were to also take steps to devalue their currency, in order to gain a trade advantage.

BBC: Haruhiko Kuroda

The question was whether those not engaged in legitimate trade were taking advantage of special, restricted access to China's official foreign-exchange market set up for those who need yuan to buy mainland goods.

WSJ: The View From Hong Kong: Walking a Fine Line on Yuan Trade

Trade encourages nations to specialize in their "comparative advantage" and trade with other nations that specialize in theirs.

FORBES: Who Will Speak for Free Trade?