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Estimation of Seasonal Cointegration under Conditional Heteroskedasticity
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 Title & Authors
Estimation of Seasonal Cointegration under Conditional Heteroskedasticity
Seong, Byeongchan;
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We consider the estimation of seasonal cointegration in the presence of conditional heteroskedasticity (CH) using a feasible generalized least squares method. We capture cointegrating relationships and time-varying volatility for long-run and short-run dynamics in the same model. This procedure can be easily implemented using common methods such as ordinary least squares and generalized least squares. The maximum likelihood (ML) estimation method is computationally difficult and may not be feasible for larger models. The simulation results indicate that the proposed method is superior to the ML method when CH exists. In order to illustrate the proposed method, an empirical example is presented to model a seasonally cointegrated times series under CH.
seasonal error correction model;seasonal unit root;reduced rank estimation;multivariate GARCH;feasible generalized least squares;maximum likelihood estimation;vector autoregressive model;
 Cited by
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