理解布莱克-斯科尔斯模型的关键在于认识到它是基于对冲以消除风险的理念。
Sustainability isn't a buzzword—it's the only way forward for global food security.
In computing, invariants are ephemeral.
In the short run, the market is a voting machine but in the long run, it is a weighing machine.
The test of a man or woman's breeding is how they behave in a quarrel.