liuyuchun-cumt 发表于 2015-5-12 17:32 
请问大师,最先关于波动率微笑的文章是哪篇啊。我想学习下具体的文章。
Volatility smile is not a model, it is a market phenomena. People find this when they apply BS model into the real market. As BS model becomes the market standard, BS implied volatility also becomes a standard market quote for option's price. The shape can be a smile, a skew or others. This is how the smile comes.