INVESTMENTS | BODIE, KANE, MARCUSCopyright 2011 by The McGraw-Hill Companies, Inc. All rights reserved. McGraw-Hill/IrwinCHAPTER 7Optimal Risky Portfolios最优风险资产组合INVESTMENTS | BODIE, KANE, MARCUS7- 2The Investment Decision投资决策 Top-down process with 3 steps: 自上而下1. Capital allocation between the risky portfolio and risk-free asset 首先分配份额:安全、风险资产间2. Asset allocation across broad asset classes 各类资产间的配置3. Security selection of individual assets within each asset class 每类资产内部的证券选择INVESTMENTS | BODIE,