But within 2 years it fell by the wayside due to cost overriding the theoretical benefit of turning over the farrowing index much more quickly.

但是，2年内这种尝试便以失败告终，因为它的费用超过了其理论提高分娩次数产生的效益。

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The analysis also showed that viral load testing provided little or no clinical benefit over monitoring CD4 + counts alone and CD4 + counts proved to provide a substantial benefit at a modest cost.

分析发现病毒负荷试验未比CD 4 +计数检测多一点临床获益，而CD 4 +计数则以适当的费用提供了实质性益处。

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To serve them properly, we must supply products and services, which provide economic benefit over and above their cost.

要正确地为他们服务，我们必须提供产品和服务，从而提供超过其成本所带来的经济利益。

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Indeed I regard uncertainties over cost-benefit calculations as insurmountable, yet I compile placeholder figures regardless.

FORBES: Regulation Vs. Jobs: Assessing The Employment Impact Of Rules and Regulations

Which makes one wonder: where are all the economists, wringing their hands over cost-benefit analyses of these defense expenditures?

ECONOMIST: Business travel

Reitzes also noted that iPads and iBooks textbooks will be an easier sell to college students who will benefit more from the cost savings over traditional textbooks.

FORBES: How Will Teachers Pay For Apple's New iBooks? Sites Like DonorsChoose.Org