我没有钱啊

可不可以不要钱啊

这方面的文章太多了，给个说明吧，让大家透明消费。

太贵了，老兄，能否打折啊，学生来着

这方面的资料很多，你也要突出你材料的重要性才有人买呀！

原来是当年那片经典的原创论文，虽然花钱了，但是至少帮助其他人知道内容了

GENERALIZED AUTOREGRESSIVE CONDITIONAL
HETEROSKEDASTICITY
Tim BOLLERSLEV*
University of California at San Diego, La Jolla, CA 92093, USA
Institute of Economics, University of Aarhus, Denmark
Received May 1985, final version received February 1986
A natural generalization of the ARCH (Autoregressive Conditional Heteroskedastic) process
introduced in Engle (1982) to allow for past conditional variances in the current conditional
variance equation is proposed. Stationarity conditions and autocorrelation structure for this new
class of parametric models are derived. Maximum likelihood estimation and testing are also
considered. Finally an empirical example relating to the uncertainty of the inflation rate is
presented.

学习一下◎

好贵啊 而且没有内容简介

太贵了

楼主学政治的吧，强取豪夺。。