Showing 1 - 10 of 131
Although the main interest in the modelling of electricity prices is often on volatility aspects, we argue that … towards volatility features of the time series. For the older electricity market of Nord Pool in Norway, it is found that a …
Persistent link: https://www.econbiz.de/10005137027
-driven models. We consider dynamic count, intensity, duration, volatility and copula models, including new specifications that have …
Persistent link: https://www.econbiz.de/10009653053
presence and timing of an outlier. Next, a second test determines the type of additive outlier (volatility or level). The tests …
Persistent link: https://www.econbiz.de/10005144394
We present a model for hourly electricity load forecasting based on stochastically time-varying processes that are designed to account for changes in customer behaviour and in utility production efficiencies. The model is periodic: it consists of different equations and different parameters for...
Persistent link: https://www.econbiz.de/10005144435
We propose new scoring rules based on partial likelihood for assessing the relative out-of-sample predictive accuracy of competing density forecasts over a specific region of interest, such as the left tail in financial risk management. By construction, existing scoring rules based on weighted...
Persistent link: https://www.econbiz.de/10005137187
The basic structural time series model has been designed for the modelling and forecasting of seasonal economic time series. In this paper we explore a generalisation of the basic structural time series model in which the time-varying trigonometric terms associated with different seasonal...
Persistent link: https://www.econbiz.de/10008838551
predicting monthly US excess stock returns and volatility over the period 1980-2005. Factor-augmented predictive regression … superior market timing ability and volatility timing ability, while a mean-variance investor would be willing to pay an annual …
Persistent link: https://www.econbiz.de/10008740266
We extend the Hidden Markov Model for defaults of Crowder, Davis, and Giampieri (2005) to include covariates. The covariates enhance the prediction of transition probabilities from high to low default regimes. To estimate the model, we extend the EM estimating equations to account for the time...
Persistent link: https://www.econbiz.de/10005136908
Dynamic models for credit rating transitions are important ingredients for dynamic credit risk analyses. We compare the properties of two such models that have recently been put forward. The models mainly differ in their treatment of systematic risk, which can be modeled either using discrete...
Persistent link: https://www.econbiz.de/10005504967
Housing markets typically exhibit a strong positive correlation between the rate of price increase and the number of houses sold. We document this correlation on high-quality Dutch data for the period 1985-2007, and estimate a VEC-model that allows us to study the mechanism giving rise to the...
Persistent link: https://www.econbiz.de/10008838594