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40#
发表于 2012-3-23 11:18
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Which of the following would least likely be considered a market anomaly? A)
| Underperformance of stocks with relatively high PE ratios or low book-to-market values. |
| B)
| The stock market continues to climb as investors are trading according to economic expectations. |
| |
Typically, in a bubble, the initial behavior is thought to be rational as investors trade according to economic changes or expectations. Later, investors start to doubt the fundamental value of the underlying asset, at which point the behavior becomes irrational.
Two anomalies discussed by Fama and French are associated with value and growth stocks. Value stocks have low price-to-earnings ratios, high book-to-market values, and low price-to-dividend ratios, with growth stocks having the opposite characteristics of high PE ratios, low book-to-market values, and high price to dividend ratios.
Financial bubbles and subsequent crashes are periods of unusual positive or negative returns caused by panic buying and selling, neither of which is based on economic fundamentals. The buying (selling) is driven by investors believing the price of the asset will continue to go up (down). A bubble or crash is defined as an extended period of prices that are two standard deviations from the mean. A crash can also be characterized as a fall in asset prices of 30% or more over a period of several months, whereas bubbles usually take much longer to form. |
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