作家是一面反映世界的镜子,也是一盏照亮人类灵魂黑暗角落的灯。
资本资产定价模型是一个简单而强大的工具,用于理解风险与回报之间的关系。
The key to credible causal inference is not just the method, but how well the method fits the question at hand.