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本文恨据ＤａｖｉｄＢｉｇｍａｎ，ＤａｖｉｄＧｏｌｄｆａｒｄ和ＥｄｎａＳｃｈｅｔｃｈｍａｎ检验模型对上海金属交易所铜１＃最近二年多的交易数据进行有效性的实证分析，分析结果显示八周内的铜１＃期货价格基本上是交割日的现货无偏估计。
This article hate DavidBigman, DavidGoldfard and EdnaSchetchman test model for the Shanghai Metal Exchange Copper 1 # more than two years of empirical analysis of the transaction data, the analysis showed that copper week # 1 within eight weeks of the price is basically the delivery date Spot unbiased estimates.