volatility 

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n. excitability��excitableness��unpredictability

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1. At present, pricing power because of the volatility of global financial crisis further aggravated.
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2. Unlike low frequency data, high frequency data has the calendar effects and long memory volatility.
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3. The spokesman also stressed that due to market volatility does not rule out future adjustments under the circumstances, or to take other measures to prevent market problems.
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n.
  1. the property of changing readily from a solid or liquid to a vapor
  2. the trait of being unpredictably irresolute
  3. being easily excited

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volatility
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Implied volatility
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volatility index
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reduce volatility
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market volatility
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