It is not just altruism: greener engines also use less fuel, so boost profit margins.

这并非只是利他之举：更绿色的引擎会使用更少的燃料以增加利润率。

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Some companies see that by using additives, they can cut overhead costs or boost profit margins, and they merely aren't thinking about the affects the additives will have on consumers, Mr. Ross says.

一些公司认为通过使用添加剂，他们可以降低成本，或提高利润，他们根本没有想过这样做对消费者有什么样的影响。Ross说。

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This means they, too, might see a boost to profit from declines in the value of their debts during the summer credit crunch.

这也意味着它们的利润将因今年夏季信贷危机期间债务价值的下降而增加。

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Few businesses are flexible and scalable enough to boost profit margins when revenues decline.

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Increased sales of high-resolution panels for tablet PCs and OLED panels for smartphones also helped boost profit in the quarter.

ENGADGET: Samsung's Q1 2012 profits nearly double year-over-year on higher margins for TVs and phones

It added that along with a pick-up in demand for international and domestic travel, cost-cutting measures were likely to help boost profit.

BBC: Japan Airlines raises full-year profit forecast