Bitte verwenden Sie diesen Link, um diese Publikation zu zitieren, oder auf sie als Internetquelle zu verweisen: https://hdl.handle.net/10419/79568 
Erscheinungsjahr: 
2013
Schriftenreihe/Nr.: 
SFB 649 Discussion Paper No. 2013-010
Verlag: 
Humboldt University of Berlin, Collaborative Research Center 649 - Economic Risk, Berlin
Zusammenfassung: 
Quantile regression is in the focus of many estimation techniques and is an important tool in data analysis. When it comes to nonparametric specifications of the conditional quantile (or more generally tail) curve one faces, as in mean regression, a dimensionality problem. We propose a projection based single index model specification. For very high dimensional regressors X one faces yet another dimensionality problem and needs to balance precision vs. dimension. Such a balance may be achieved by combining semiparametric ideas with variable selection techniques.
Schlagwörter: 
quantile single-index regression
minimum average contrast estimation
co-VaR estimation
composite quasi-maximum likelihood estimation
Lasso
model selection
Dokumentart: 
Working Paper

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