Only up to a point. Conventional index-tracking has a logical advantage on its side: a value-weighted index represents, by definition, the performance of all investors.

只有达到这么一点，传统的指数跟踪在这方面有一个逻辑优势：按照定义，一个以价值为权重的指数代表所有投资者的业绩。

youdao

This trick is called weighted averaging, and it protects you from making significant changes based on one data point that may or may not be unusual.

这个方法就是加权平均 ，它可以保护你避免做出重大改变，这些改变是基于一个数据点，这个数据点可能是不平常的也可能是平常的。

youdao

Model parameters are computed using a weighted linear regression technology according to the different impacts of rate point to estimation of model parameters.

利用率点对模型参数估计的影响强弱，使用一种加权的线性回归模型参数估计算法。

youdao

For the same reason, I think Arnott will have a hard time maintaining his percentage-point lead over the cap-weighted Russell 1000.

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For now, the European economy does not seem to be doing too badly, though Lehman Brothers reckons that every 5% rise in the trade-weighted euro shaves about a quarter of a percentage point off growth and inflation.

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