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。
我不是品牌,我是人类。
"A room without books is like a body without a soul."
Reinforcement is the central factor in the acquisition of new behavior patterns.