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Chapter 06 Practice Test Question 15 Single Index Model Parameters An analyst estimates a stock's alpha, beta and de using excess returns. The part of the stock's excess return that is related to movements in the market index is measured by the the excess return that occurred if the market's excess return is zero is estimated by the and the firm specific component of excess return that is unrelated to market movements is measured by Multiple Choice beta, e, alpha O alpha, beta, de O beta, alpha, de O O De, alpha, beta