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In this paper we consider modeling and forecasting of large realized covariance matrices by penalized vector autoregressive models. We propose using Lasso-type estimators to reduce the dimensionality to a manageable one and provide strong theoretical performance guarantees on the forecast...
Persistent link: https://www.econbiz.de/10010433899
Persistent link: https://www.econbiz.de/10008824787
Gerade vor dem Hintergrund der Finanzmarktkrise in 2008 sind die klassische Portfoliotheorie und die Wirkungsweise von Korrelationen erneut in die Kritik geraten. Svend Reuse analysiert das Verhalten von Korrelationen in Extremsituationen unter Berücksichtigung des irrationalen Marktverhaltens....
Persistent link: https://www.econbiz.de/10014425258
Persistent link: https://www.econbiz.de/10009693817
A common approach to dealing with missing data is to estimate the model on the common subset of data, by necessity throwing away potentially useful data. We derive a new probit type estimator for models with missing covariate data where the dependent variable is binary. For the benchmark case of...
Persistent link: https://www.econbiz.de/10003829113
A common approach to dealing with missing data is to estimate the model on the common subset of data, by necessity throwing away potentially useful data. We derive a new probit type estimator for models with missing covariate data where the dependent variable is binary. For the benchmark case of...
Persistent link: https://www.econbiz.de/10012764225
A common approach to dealing with missing data is to estimate the model on the common subset of data, by necessity throwing away potentially useful data. We derive a new probit type estimator for models with missing covariate data where the dependent variable is binary. For the benchmark case of...
Persistent link: https://www.econbiz.de/10015380009
Persistent link: https://www.econbiz.de/10000633684
Optimal portfolio theory depends upon a sophisticated understanding of the correlation among financial assets. In this … paper, we examine people's understanding of correlation using portfolio-allocation problems and find it to be strongly … behave very differently within pairs. We find evidence for correlation neglect — treating correlated variables as …
Persistent link: https://www.econbiz.de/10012963333
The empirical asset pricing literature documents a myriad of anomalies. Accounting for the correlated and mean-reverting nature of these anomalies, I provide an explicit solution to the optimal dynamic investment problem of a risk-averse investor who trades in an arbitrary number of potentially...
Persistent link: https://www.econbiz.de/10012948516