1·Therefore, evaluation could be carried out by means of Generalized Autoregressive Conditional Heteroscedasticity (GARCH), which could make hedge ratio vary with time.
因此，评估可由广义自回归条件异方差(GARCH模型)，这可能使避险比率意味着出随时间变化。
2·The generalized autoregressive conditional heteroscedasticity (GARCH) model has the ability to describe the volatility of time series.
广义自回归条件异方差(GARCH)模型具有描述时间序列波动性的能力。
3·This paper proves the elasticity of China's exchange market under interference after the Asian financial crisis by adopting Autoregressive Conditional Heteroscedasticity (ARCH) model.
本文通过自回归条件异方差(ARCH)模型证明了亚洲金融危机后中国汇市在干预下的弹性。
4·This paper deals with the statistical inference of an autoregressive conditional heteroscedasticity (ARCH) model under restriction.
研究序约束条件下自回归条件异方差（ARCH）模型的统计推断。
5·According to previous research results, the article proposed a set of variable-weighting function theory, and researched on different heteroscedasticity of group data by variable-weighting function.
根据前人的研究成果，文章提出非定式权函数理论，并以非定式权函数对不同异方差性的分组数据开展研究。