The conditional heteroscedasticity is a typical characteristic of finance time series. 摘要条件异方差是金融时间序列变量的一个典型特征。
Eversince, financial time series analysis is of prevalent interest to theoreticians for making inferences and predictions though it is primarily an empirical discipline. 自从他以后,金融时间序列分析在那些做推论和预测的理论家流行起来,尽管它主要是门经验学科。