EBK PRINCIPLES OF CORPORATE FINANCE
EBK PRINCIPLES OF CORPORATE FINANCE
12th Edition
ISBN: 9781259358487
Author: BREALEY
Publisher: MCGRAW HILL BOOK COMPANY
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Chapter 13, Problem 6PS

Market efficiency Respond to the following comments:

  1. a) “The random-walk theory, with its implication that investing in stocks is like playing roulette, is a powerful indictment of our capital markets.”
  2. b) “If everyone believes you can make money by charting stock prices, then price changes won't be random.”
  3. c) “The random-walk theory implies that events are random, but many events are not random. If it rains today, there's a fair bet that it will rain again tomorrow. “
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In the derivation of the option pricing formula, we required that a delta-hedged position earn the risk-free rate of return. A different approach to pricing an option is to impose the condition that the actual expected return on the option must equal the equilibrium expected return.  Suppose the risk premium on the stock is 0.03, the price of the underlying stock is 111, the call option price is 4.63, and the delta of the call option is 0.4. Determine the risk premium on the option.
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Assume an investor buys a share of stock for $18 at t = 0 and at the end of the next year (t = 1) , he buys 12 shares with a unit price of $9 per share. At the end of Year 2 (t = 2) , the investor sells all shares for $40 per share. At the end of each year in the holding period, the stock paid a $5.00 per share dividend. What is the annual time-weighted rate of return?
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