The capital allocation line shows the risk-return trade-offs available by mixing risk-free as- sets with the investor’s risky portfolio. Investors can choose the assets included in the risky portfolio using either passive or active strategies. A passive investing strategy is based on the premise that securities are fairly priced and it avoids the costs involved in undertaking security analysis. Such a strategy might at first blush appear to be naive. However, we know that intense competition among professional money managers might indeed force security prices to levels at which further security analysis is unlikely to turn up significant profit opportunities. Passive investment strategies may make sense for many investors. (more…)