So, it's not surprising that asset allocation explains more than 100% of returns and that, for the community as a whole, market timing and security selection are costly and lower the community's aggregate investment returns.

因此资产配置能解释100%以上的回报,也不足为奇了,对投资者整体来说,市场时机选择,和证券选择是有代价的,降低了总的投资回报

耶鲁公开课 - 金融市场课程节选

On the other hand, middle managers and very tech-savvy folks are allowed to slice and dice all of the data using more than 34 different selection criteria, he said.

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The selection of more than 140 paintings on display at Kelvingrove is one of the largest ever staged.

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The survey by Ipsos MORI asked a random selection of more than 1, 600 patients from all Guernsey GP practices.

BBC: Dr Ian Baxendale