Example: biology
Arma 3
Found 2 free book(s)Lecture 2: ARMA(p,q) models (part 3)
math.unice.frIntroduction Road map 1 ARMA(1,1) model De nition and conditions Moments Estimation 2 ARMA(p,q) model De nition and conditions Moments Estimation 3 Application 4 Appendix Florian Pelgrin (HEC) Univariate time series Sept. 2011 - Jan. 2012 3 / 32
18 GARCH Models - University of Washington
faculty.washington.eduAs we saw in Chapter 9, ARMA models are used to model the conditional expectation of a process given the past, but in an ARMA model the con-ditional variance given the past is constant. What does this mean for, say, ... Property (18.3) is called conditional homoskedasticity.