It's really a very basic effect that we are all, at some level at least, aware of - which is that if you smile at people and you maintain eye contact, it makes you more attractive.
至少从某种程度而言，所有人都清楚这是一种本能力量——如果你对别人露出笑脸并保持目光交流，你会看起来更具吸引力。
These systematic valuation errors are documented in a stylized fact, the "volatility smile" effect.
这个系统性的差异被称为波动率微笑。
These systematic valuation errors are documented in a stylized fact, the "volatility smile" effect.
这个系统性的差异被称为波动率微笑。
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