Showing 1 - 10 of 553
Volatility-based filtering is proposed to pre-process historical daily return data of stock indexes before applying to price-based technical analysis trading rules. Any “nearly flat” days which have daily gains or losses less than a threshold about 20% of a daily volatility measure, is...
Persistent link: https://www.econbiz.de/10013082434
nonparametric predictor based on the canonical factorization of the spectral density function given in Whittle (1963) and known as … proposed method is semiparametric, in the sense that, in contrast to other methods, we do not need to assume any particular …
Persistent link: https://www.econbiz.de/10012771044
-to-construct non-parametric estimators and ii) parametric price duration estimators using autoregressive conditional duration … specifications. We derive the asymptotic properties of our non-parametric estimator with and without the presence of some of the … selecting a threshold parameter that defines a price duration event, or by averaging over a range of non-parametric duration …
Persistent link: https://www.econbiz.de/10012855793
This paper develops parameter instability and structural change tests within predictive regressions for economic systems governed by persistent vector autoregressive dynamics. Specifically, in a setting where all – or a subset – of the variables may be fractionally integrated and the...
Persistent link: https://www.econbiz.de/10012831312
We propose a hybrid penalized averaging for combining parametric and non-parametric quantile forecasts when faced with … context. The application offers three main findings. First, combining parametric and non-parametric approaches adds quantile …
Persistent link: https://www.econbiz.de/10012859663
This paper proposes a novel covariance estimator via a machine learning approach when both the sampling frequency and covariance dimension are large. Assuming that a large covariance matrix can be decomposed into low rank and sparse components, our method simultaneously provides a consistent...
Persistent link: https://www.econbiz.de/10012867396
This paper studies standard predictive regressions in economic systems governed by persistent vector autoregressive dynamics for the state variables. In particular, all - or a subset - of the variables may be fractionally integrated, which induces a spurious regression problem. We propose a new...
Persistent link: https://www.econbiz.de/10012889937
This paper considers the estimation of a semi-parametric single-index regression model that allows for nonlinear … stationarity properties of asset returns but also avoids the curse of dimensionality associated with non-parametric regression …
Persistent link: https://www.econbiz.de/10012822931
calibration. The proposed Bayesian nonparametric approach takes advantage of the flexibility of Dirichlet process mixtures to …. The weak posterior consistency of the Bayesian nonparametric calibration is provided under suitable conditions for unknown …
Persistent link: https://www.econbiz.de/10013023291
calibration. The proposed Bayesian nonparametric approach takes advantage of the flexibility of Dirichlet process mixtures, to …. The weak posterior consistency of the Bayesian nonparametric. calibration is provided under suitable conditions for …
Persistent link: https://www.econbiz.de/10013027970