Results presented in the chapter are based on historical data. Of what use are these results to

Question:

Results presented in the chapter are based on historical data. Of what use are these results to a portfolio manager who may be making an investment decision today? Elaborate.

Portfolio
A portfolio is a grouping of financial assets such as stocks, bonds, commodities, currencies and cash equivalents, as well as their fund counterparts, including mutual, exchange-traded and closed funds. A portfolio can also consist of non-publicly...

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