There are many researches about exchange rate determining models, but lots of them choose the methods of econometrics which pay little attention to analyzing the inside mechanism of the system.

关于人民币汇率决定模型的研究，很多采用的是计量分析法，缺乏对模型内部运行机制的分析。

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This time, he told me about insurance to pay for future breakdowns, and tried to interest me in newer models.

ECONOMIST: Why pay is becoming less equal