但在大多数交易中，资产的交易价格还是接近资产的基本价值，符合有效市场假说的预期。
But most of the traded prices of the asset are close to the fundamental value and accord with efficient market hypothesis.
结果显示：距最后交易日前7、14、28天的铝期货市场支持风险溢价假说，在风险溢价条件下具有长期效率；
The empirical tests are conducted through the cointegration method and results show that the aluminum futures market, 7,14,28 days prior to the last trading day, supports the risk premium hypothesis;
其中与美国市场不同的是，交易量与收益显著正相关，这就与流动性补偿假说相矛盾。
Contrary to the re search of US market, trading volume is positive related to returns, which is incon sist with the liquidity compensation hypothesis.
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