布莱克-斯科尔斯模型的美妙之处在于它将期权定价问题简化为估计几个关键参数,尤其是波动率。
比喻政府干预初衷虽好,但结果可能适得其反。
人类是一种糟糕的动物。
Short videos are a product of the times, they lower the threshold for expression.
The biggest risk is not taking any risk. In a world that's changing quickly, the only strategy that is guaranteed to fail is not taking risks.