...2 1 E R p E A2 r g A2 r 风险（由于非现金资产的利息收入是固定的） ： R A2 g 根据以上公式得到机会轨迹（Opportunity Locus） ： E Rp r R g收益和风险的衡量 E Rp 风险规避者的资产选择 I 对于风险厌恶型的投资者，当其无 C 差异曲线与机会轨迹相切时，效...
We may have lost some innocence, moreover, but America still remains a bastion of civil and political freedom and a locus of economic opportunity in a world not precisely overflowing with either of these things.