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This note gives a fairly complete statistical description of the Hodrick-Prescott Filter (1997), originally proposed by Leser (1961). It builds on an approach to seasonal adjustment suggested by Leser (1963) and Schlicht (1981, 1984). A moments estimator for the smoothing parameter is proposed...
Persistent link: https://www.econbiz.de/10005187291
Trend extraction from time series is often performed by using the filter proposed by Leser (1961), also known as the Hodrick-Prescott filter. A practical problem arises, however, when the time series contains structural breaks (such as produced by German unification for German time series, for...
Persistent link: https://www.econbiz.de/10005187327
Existing methods for data interpolation or backdating are either univariate or based on a very limited number of series, due to data and computing constraints that were binding until the recent past. Nowadays large datasets are readily available, and models with hundreds of parameters are fastly...
Persistent link: https://www.econbiz.de/10005530985
macroeconomic information. It is an extension of the SPLINE GARCH model proposed by Engle and Rangel (2005). The advantage of the …
Persistent link: https://www.econbiz.de/10005416549
interest rate. More precisely, we implement the exponential functional form of Nelson-Siegel and polynomial spline methods …
Persistent link: https://www.econbiz.de/10005744232
Trend extraction from time series is often performed by using the filter proposed by Leser (1961), also known as the Hodrick-Prescott filter. Practical problems arise, however, if the time series contains structural breaks (as produced by German unification for German time series, for instance),...
Persistent link: https://www.econbiz.de/10005649812
In this paper, a semi-parametric generalization of the Cox model that permits crossing hazard curves is described. A theoretical framework for estimation in this model is developed based on penalized likelihood methods. It is shown that the optimal solution to the baseline hazard, baseline...
Persistent link: https://www.econbiz.de/10010665591
Limited literature has been published on the association between environmental health indicators, life-style habits and ambient air pollution. We have examined the association of asthma prevalence and the amount of health investment with daily mean concentrations of particulate matter (PM) with...
Persistent link: https://www.econbiz.de/10010666069
regression model are simply values of the spline at reference points on the X axis. The recent addition, flexcurv, is an easy … flexcurv now have the additional option of generating an incomplete basis of reference splines, with the reference spline for a … design matrix and can then be used to estimate differences between values of the spline at the remaining reference points and …
Persistent link: https://www.econbiz.de/10010631477
on a linear spline. In the new model the correlation between the return and volatility innovations is time varying and …
Persistent link: https://www.econbiz.de/10010574062