Unit root tests in the presence of uncertainty about the non-stochastic trend
β Scribed by Leila Ayat; Peter Burridge
- Book ID
- 108432804
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 162 KB
- Volume
- 95
- Category
- Article
- ISSN
- 0304-4076
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## Abstract We consider asymptotic behavior of selfβnormalized sums of autoregressive fractionally integrated moving average (ARFIMA) processes whose innovations are GARCH errors. The asymptotic distribution of the sums is derived under very mild conditions. Applications to unit root tests with ARF
## Abstract This paper considers the problem of testing for the presence of stochastic trends in multivariate time series with structural breaks. The breakpoints are assumed to be known. The testing framework is the multivariate locally best invariant test and the common trend test of Nyblom and Ha