The dollar has long been the global benchmark for commodities pricing, from oil to gold to iron ore, and all of the world's most important indexes are still priced in the greenback.

美元已长期作为全球商品价格的基准，从石油到黄金，再到铁矿石，以及世界所有最重要的指数都是根据美元定价的。

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The global benchmark for freight costs for dry bulk commodities jumped 6 per cent to 4,643 points, taking the Baltic's gains since the rally began eight weeks ago to 114.6 per cent.

这个显示干散货大宗商品运输成本的全球基准指数飙升6%，至4643点，意味着该指数自8周前开始上涨以来，涨幅已达114.6%。

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"There's a tug-of-war going on as to which one is going to be the ultimate benchmark, " said Michael Sabo, senior commodities broker at RJO Futures.

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For strategies that invest in a range of asset classes, such as bonds and commodities, investors and advisers should come up with a more-balanced benchmark, says Jonathan Boersma, executive director of Global Investment Performance Standards for the CFA Institute.

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