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asymptotically valid for serially independent observations. Yet, in the presence of serial correlation they are markedly oversized as … confirmed in a simulation study. We summarize serial correlation robust test procedures and propose a bootstrap approach. By … relevance to account for serial correlation in economic time series when testing for the value of directional forecasts …
Persistent link: https://www.econbiz.de/10003796145
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We consider the problem of ex-ante forecasting conditional correlation patterns using ultra high frequency data … correlation matrices and exogenous factors. The Fisher-z transformation guarantees robustness of correlation estimators under … prominent parametric and nonparametric alternatives to correlation modeling. Based on economic performance criteria, we …
Persistent link: https://www.econbiz.de/10003516408
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This paper addresses the open debate about the effectiveness and practical relevance of highfrequency (HF) data in portfolio allocation. Our results demonstrate that when used with proper econometric models, HF data offers gains over daily data and more importantly these gains are maintained...
Persistent link: https://www.econbiz.de/10009306337
estimator. We propose forecasting covariance matrices using a multi-scale spectral decomposition where volatilities, correlation …
Persistent link: https://www.econbiz.de/10009308302
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dynamic conditional correlation model (DCC) to multivariate elliptical copulas. The most suitable dynamic dependence model in …
Persistent link: https://www.econbiz.de/10011344180
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