一位厌恶风险的投资者。其资产组合在如图20—8所示中的E点达到均衡。这时突然他能够得到一项无风险的资产。请用图形表示这将如何影响资产组合的均衡,试讨论。 A risk—averse investor is in equilibrium at a point such as E in Figure 20—8.Suddenly.a risk-free asset becomes available.Show graphically how this affects portfolio equilibrium.Discuss.