In particular, the minimal price of the European down-and-in call option under transaction costs is obtained, which can be used as the actual price of an option.
特别地，在考虑交易费的情况下我们得到了欧式下降敲入看涨期权的最小值，即期权的实际价值。
Methods of GIS, statistical and econometric were employed with the actual transaction data of land price in Kunming from 2001-2005.
研究方法：采用昆明市2001—2005年的实际交易地价数据，运用GIS空间分析和计量经济学模型。
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