Optimism is a learned skill.
我尝试以开放的心态和学习的意愿来接近每个角色。
理解布莱克-斯科尔斯模型的关键在于认识到它是基于风险中性世界的概念,在这个世界中投资者对风险漠不关心。
The quality of a country's institutions is the single most important determinant of its long-term economic performance.