资本资产定价模型并非旨在成为资本市场的实证均衡理论,而是一种规范性理论,描述如果投资者以某种方式行事,价格应如何表现。
我写的每一个词都是试图触及不可触及之物,触摸无形之物的尝试。
Be civil to all; sociable to many; familiar with few; friend to one; enemy to none.
The act of writing is an act of courage.