此外，较高的评级与信用增级都人为地提高了结构产品中基础贷款的质量。

Also, favourable ratings and credit enhancements artificially boosted the quality of loans underlying structured products.

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这些评级机构决定所需的信用增级程度，以便获得可用于与具有相同评级的公司债券比较的信用评级。

These agencies determine the amount of credit enhancement required to produce a credit quality comparable to that of a same-rated corporate bond.

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