Lower learning frequency and more noise traders will result in more excess volatility.

学习趋向缓慢或者停滞将导致过度波动程度的小幅度增加；

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While there are few noise traders, such institute will increase the degree of excess volatility.

当市场投资者构成中噪音交易者比例很小的情况下，涨跌幅限制制度反而将增加过度波动程度。

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Excess volatility and disorderly movements in exchange rates are undesirable for economic growth.

汇率过度的不稳定和无秩序的移动对经济的增长是不利的。

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"The G7 has long committed that exchange rates should float, except in rare circumstances where excess volatility or disorderly movements might warrant cooperation, " she said.

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Concerned about excess market volatility, the Securities and Exchange Commission has loosened some trading regulations, including allowing companies to buy back more of their own shares than usual.

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Third, Congress should give the agency responsible for overseeing oil markets new authority to protect against volatility and excess speculation by making sure that traders can post appropriate margins, which simply means that they actually have the money to make good on their trades.

WHITEHOUSE: President Obama Speaks on Increasing Oversight on Manipulation in the Oil Market | The White House