Local scale models: state space alternative to integrated GARCH processes

State space alternative to autoregressive conditional heteroskedasticity models are proposed. The initial model, which is labelled the Gaussian local scale model, has a measurement density which is Gaussian, conditional on the unobservable precision. The precision is assumed to be a gamma variable w...

Täydet tiedot

Bibliografiset tiedot
Päätekijä: Shephard, N
Aineistotyyppi: Journal article
Kieli:English
Julkaistu: Elsevier 1994
Aiheet: