wjturnip 发表于 2011-6-29 18:23 
请问金融时间序列的方法对样本量有什么要求,比如做GARCH之类的模型需要数据达到多大规模,我想用月度数据,一共只能收集到70多组,怕样本量不足。请各位大神赐教!
At least 300 data points for Garch(1,1) model. If you have 500(+) data points, you may have a good chance with reliable results in practice.
You can build a simulation model to analyze it yourself.