Principles of Corporate Finance (Mcgraw-hill/Irwin Series in Finance, Insurance, and Real Estate)
Principles of Corporate Finance (Mcgraw-hill/Irwin Series in Finance, Insurance, and Real Estate)
12th Edition
ISBN: 9781259144387
Author: Richard A Brealey, Stewart C Myers, Franklin Allen
Publisher: McGraw-Hill Education
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Chapter 13, Problem 11PS

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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