Abstract
A class of nonlinear ARCH processes is introduced and studied. The existence of a strictly stationary and β-mixing solution is established under a mild assumption on the density of the underlying independent process. We give sufficient conditions for the existence of moments. The analysis relies on Markov chain theory. The model generalizes some important features of standard ARCH models and is amenable to further analysis.
| Original language | English |
|---|---|
| Pages (from-to) | 2256-2271 |
| Number of pages | 16 |
| Journal | Annals of Applied Probability |
| Volume | 16 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 1 Jan 2006 |
| Externally published | Yes |
Keywords
- Ergodicity
- GARCH-type models
- Markov chains
- Nonlinear time series
- Threshold models
- β-Mixing