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In this paper, we develop a new asymptotic theory of the long run variance estimator obtained by fitting a vector … statistic and t-statistic remain asymptotically pivotal. On the basis of the new asymptotic theory, we introduce a new and easy …
Persistent link: https://www.econbiz.de/10014188745
new autocorrelation tests (called g- and gl- tests), and derives an asymptotic theory for the new statistics. The g test …The presence of conditional heteroskedasticity invalidates standard autocorrelation tests such as the Durbin …
Persistent link: https://www.econbiz.de/10014087060
A new family of kernels is suggested for use in heteroskedasticity and autocorrelation consistent (HAC) and long run … limit theory for untruncated kernels is provided using a new proof based on Mercer's theorem that allows for kernels which …
Persistent link: https://www.econbiz.de/10014088395
Although the main interest in the modelling of electricity prices is often on volatility aspects, we argue that stochastic heteroskedastic behaviour in prices can only be modelled correctly when the conditional mean of the time series is properly modelled. In this paper we consider different...
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