Showing 1 - 10 of 215
Persistent link: https://www.econbiz.de/10009581104
This paper improves previous sufficient conditions for stationarity obtained in the context of a general nonlinear vector autoregressive model with nonlinear autoregressive conditional heteroskedasticity. The results are proved by using the stability theory developed for Markov chains....
Persistent link: https://www.econbiz.de/10009616775
Cointegrated VARMA models can be parameterized by using the echelon form, which is characterized by the Kronecker indices. Three different methods for estimating the Kronecker indices of cointegrated echelon form VARMA models are discussed and compared. They have the common feature of estimating...
Persistent link: https://www.econbiz.de/10009630541
We show in this article that fractionally integrated univariate models for GDP may lead to a better replication of business cycle characteristics. We firstly show that the business cycle features are clearly affected by the degree of integration as well as by the other short run components of...
Persistent link: https://www.econbiz.de/10009614295
We propose in this article a general time series model, whose components are modelled in terms of fractionally integrated processes. This specification allows us to consider the trend, the seasonal and the cyclical components as stochastic processes, including the unit root models as particular...
Persistent link: https://www.econbiz.de/10009612016
(cointegration). It will be shown that aggregation does not distort the cointegration relation while some other features of the data … generating process will change considerably. Cointegration tests become invalid in a single equation framework but system … cointegration analysis seems to be robust against various aggregation strategies. -- cointegration ; aggregation ; time series …
Persistent link: https://www.econbiz.de/10009620772
Testing the cointegrating rank of a vector autoregressive process which may have a deterministic linear trend is considered. Previous proposals for dealing with such a situation are either to allow for a deterministic trend term in computing a suitable test statistic or else remove the linear...
Persistent link: https://www.econbiz.de/10009659627
A test procedure based on ranks is suggested to test for nonlinear cointegration. For two (or more) time series it is … is no cointegration between the time series, the sequences of ranks tend to diverge, whereas under cointegration the … perform better than their parametric competitors. To test for nonlinear cointegration a variable addition test based on ranks …
Persistent link: https://www.econbiz.de/10009578004
Testing the cointegrating rank of a vector autoregressive process with an intercept is considered. In addition to the likelihood ratio (LR) tests developed by Johansen and Juselius and others we also consider an alternative class of tests which is based on estimating the trend parameters of the...
Persistent link: https://www.econbiz.de/10009578014
cointegration tests are applied to the adjusted series. The resulting tests are shown to have known limiting null distributions …
Persistent link: https://www.econbiz.de/10009578552