portfolio 基础班讲义第19页,倒数第二行的句子有点不是很明白:
risk aversion: investors prefer less risk and given the same risks by given the same returns.
老师,我懂前面,就是investors prefer less risk by given the same returns, 即给定相同的收益率水平,风险厌恶的投资者更偏好低风险。那么中间的“and given the same risks” 是什么东东????????