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在拥有数据之前进行理论化是一个重大错误。
Then I had religion, then I had a vision. I could not turn from their revel in derision. Then I saw the Congo creeping through the black, cutting through the forest with a golden track。
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。
永远不要冒你无法承受的损失的风险。
Leadership isn’t about being liked; it’s about getting results.