那些愿意在自己车身上为商家做广告的车主被称为“甲客族”，意即“借壳得利”。

Those private vehicle owners who allow advertising on their cars are called “jia ke zu” in Chinese, meaning putting a shell on one's car in order to get some benefit.

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一些大公司通过对大型体育运动会进行赞助为自己的产品做广告。

Some big companies advertise their products by sponsoring big sports events.

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So, we should use that, but people in finance resist using that because it's a lower number and when you're advertising your return you want to make it look as big as possible.

所以我们应该用这个指标,但金融界反感使用几何平均,因为它比其他平均数都来得小,他们为自己的收益率做广告时,当然希望数字越大越好

耶鲁公开课 - 金融市场课程节选