Showing 1 - 10 of 15
Starting from a day-to-day model on hotel specific guest nights we obtain an integer-valued moving average model by cross-sectional and temporal aggregation. The two parameters of the aggregate model reflect the daily mean check-in and the daily check-out probability. Letting the parameters be...
Persistent link: https://www.econbiz.de/10005207274
This short paper proposes a simultaneous equations model formulation for time series of count data. Some of the basic moment properties of the model are obtained. The inclusion of real valued exogenous variables is suggested to be through the parameters of the model. Some remarks on the...
Persistent link: https://www.econbiz.de/10010729200
first and second order both conditional and unconditional moments can be obtained. Hence estimation, testing and forecasting …
Persistent link: https://www.econbiz.de/10005198011
The paper advances the log-generalized gamma distribution as a suitable generator of conditional skewness. Based on the NYSE composite daily returns an asMA-asQGARCH model along with skewness dynamics is estimated. The results indicate a skewness that varies between sizeable negative skewness...
Persistent link: https://www.econbiz.de/10005765680
The asymmetric moving average model (asMA) is extended to allow for asymmetric quadratic conditional heteroskedasticity (asQGARCH). The asymmetric parametrization of the conditional variance encompasses the quadratic GARCH model of Sentana (1995). We introduce a framework for testing asymmetries...
Persistent link: https://www.econbiz.de/10005771222
Estimation in nonlinear time series models has mainly been performed by least squares or maximum likelihood (ML … respect. On the other hand, the three estimation techniques lead to fairly similar power functions for a linearity test. …
Persistent link: https://www.econbiz.de/10005424008
The daily number of occupied hotel rooms in three large Swedish cities is modelled by an integer-valued and binomial autoregression. The model includes the capacity constraint and price variables are incorporated through the parameters of the model. The model implies a duration of hotel visit...
Persistent link: https://www.econbiz.de/10005424022
The impact of news of the Moscow and New York stock market exchanges on the <p> returns and volatilities of the Baltic state stock market indices is studied using daily <p> return data for the period of 2000-2005. A nonlinear time series model that accounts <p> for asymmetries in the conditional mean and...</p></p></p>
Persistent link: https://www.econbiz.de/10005424050
The paper considers conditional duration models in which durations are in continuous time but measured in grouped or discretized form. This feature of recorded durations in combination with a frequently traded stock is expected to negatively influence the performance of conventional estimators....
Persistent link: https://www.econbiz.de/10005651936
The paper introduces a new approach to incorporating time dependent overdispersion for Poisson related regression models. To handle the added flexibility in conditional heteroskedasticity in time series count data some wellknown estimators are adapted and a GMM type estimator is suggested. The...
Persistent link: https://www.econbiz.de/10005651943