The author analyzes the indexes of stock price and their monthly excessive return rate in Shanghai and Shenzhen Market. Relative high volatility exists in China's security market.

对上海和深圳市场股价指数及其月度超额收益率的分析表明，我国股票市场的波动性较大；

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Further, some pensions are demanding managers return excessive fees paid in the past.

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Mr Morris argues that private-equity managers have charged excessive fees and overstated returns by using misleading measures of their internal rate of return.

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Broadly what it comes down to (in terms that may seem unenlightening when stated baldly, but I will elucidate) is that EDF feels it needs an internal rate of return on Hinkley of 10%, and the Treasury fears that means it would make excessive profits.

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