笔者利用数量分析的方法，对我国农村地下金融资金规模的变化趋势及影响因素进行了分析。

In this paper, by the use of quantitative analysis method, the trend of the capital scale and influence factors of China's rural underground finance are analyzed.

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本文以股指类衍生金融工具的一种——股票指数期权为研究对象，侧重于用数量方法来阐述其在我国开发应用的意义。

Targeted at one of the stock index derivative instruments-stock index option, this paper does some research work to elaborate the significance of developing it in China.

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