Showing 1 - 10 of 13,521
We introduce a long memory autoregressive conditional Poisson (LMACP) model to model highly persistent time series of counts. The model is applied to forecast quoted bid-ask spreads, a key parameter in stock trading operations. It is shown that the LMACP nicely captures salient features of...
Persistent link: https://www.econbiz.de/10010281578
An efficient and accurate approach is proposed for forecasting Value at Risk [VaR] and Expected Shortfall [ES] measures … outperforms several alternative approaches in the sense of more accurate VaR and ES estimates given the same amount of computing …
Persistent link: https://www.econbiz.de/10010326078
Out-of-sample forecasting tests of DSGE models against time-series benchmarks such as an unrestricted VAR are … improve forecasts from an unrestricted VAR. In testing forecasting capacity they also have quite weak power, particularly on … improve on VAR forecasts. …
Persistent link: https://www.econbiz.de/10010504446
We propose a novel approach to model serially dependent positive-valued variables which realize a non-trivial proportion of zero outcomes. This is a typical phenomenon in financial time series observed at high frequencies, such as cumulated trading volumes. We introduce a flexible point-mass...
Persistent link: https://www.econbiz.de/10010308578
We propose a novel approach to model serially dependent positive-valued variables which realize a non-trivial proportion of zero outcomes. This is a typical phenomenon in financial time series observed on high frequencies, such as cumulated trading volumes or the time between potentially...
Persistent link: https://www.econbiz.de/10010281483
these two family forecasting-volatility models, comparing their performance (in terms of Value at Risk, VaR) under the …-data models at 5% and 1% VaR level. Specifically, independently from the data frequency, allowing for jumps in price (or providing … fat-tails) and leverage effects translates in more accurate VaR measure. …
Persistent link: https://www.econbiz.de/10011819006
Most multivariate variance or volatility models suffer from a common problem, the “curse of dimensionality”. For this reason, most are fitted under strong parametric restrictions that reduce the interpretation and flexibility of the models. Recently, the literature has focused on...
Persistent link: https://www.econbiz.de/10010326487
estimationmethods of the DSGE model with the forecasts produced by a VAR and a Bayesian VAR. Second, we propose a new method for … combining DSGE and VAR models (in what we have called Augmented VARDSGE) through the expansion of the variable space where the … VAR operates with artificial series obtained from a DSGE model. The results indicate that the out-of-sample forecasting …
Persistent link: https://www.econbiz.de/10010317125
purpose, vector autoregressive (VAR) models are specified and estimated to construct forecasts. As the potential number of … lags included is large, we compare full's specified VAR models with subset models obtained using a Genetic Algorithm …
Persistent link: https://www.econbiz.de/10010286389
-used probit approach, but the dynamics of regressors are endogenized using a VAR. The combined model is called a ‘ProbVAR’. At any …
Persistent link: https://www.econbiz.de/10011605301