On the effect boundary, risk is return's rigid monotony increase by degrees convex function , return is risk's rigid monotony increase by degrees concave function.

在有效前沿上，风险是收益的严格单调递增凸函数，收益是风险的严格单调递增凹函数。

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The report says temperatures are estimated to increase by several degrees Celsius in the next one hundred years.

VOA: special.2009.05.12

He says that in the Antarctic Peninsula, scientists estimate that climate change has caused temperatures to increase by two or three degrees Celsius over the past fifty years.

VOA: special.2009.06.03

The minister said there were plans to increase the number of students taking foundation degrees by 25%.

BBC: Question Time

Projections indicate that Earth's air temperature could increase anywhere from two degrees to five degrees Celsius by 2100.

WSJ: In Study, Past Decade Ranks Among Hottest

This may or may not be a result of climate change, but experts give warning that if the predicted increase in temperatures does come about, if only by one or two degrees, the borderlands will become unsustainable.

ECONOMIST: The Horn of Africa