本文运用了管理学、社会保障学、经济学等相关理论，采用比较分析方法和实证分析方法进行论述。
The management, social security, economics and other related theory are referred to in this paper and research methodology is comparative analysis methods and empirical analysis methods.
第二部分介绍模型历史回顾：采用比较分析方法介绍目前国际上流行的几种计量方法，重点分析介绍了基于期权定价方法的结构模型。
The second part is bout the option - GARCH method modeling: compared with history method, option-GARCH method improved B-S price formula regarding to standard deviation supposition.
本文采用的研究方法主要是比较分析和社会调查的方法。
The major research methods adopted in this dissertation are comparative analysis and social surveys.
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