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The determinants of health care expenditure : testing pooling restrictions in small samples
Herwartz, Helmut; Theilen, Bernd - 2000
explanatory variables is unique across countries. Applying recursive estimation procedures we find that there is evidence for a …
Persistent link: https://www.econbiz.de/10009612045
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Nonparametric estimation and testing of interaction in additive models
Sperlich, Stefan; Tjostheim, Dag; Yang, Lijian - 1998
Estimation …
Persistent link: https://www.econbiz.de/10009574875
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The Beveridge-Nelson decomposition : a different perspective with new results
Gómez, Víctor; Breitung, Jörg - 1998
We show in the paper that the decomposition proposed by Beveridge and Nelson (1981) for models that are integrated of order one can be generalized to seasonal Arima models by means of a partial fraction decomposition. Two equivalent algorithms are proposed to optimally (in the mean squared...
Persistent link: https://www.econbiz.de/10009577456
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Volatility estimates of the short term interest rate with an application to German data
Dankenbring, Henning - 1998
This paper proposes a procedure for testing alternative specifications of the short term interest rate's dynamics which takes into account that according to some restrictions the interest rate is nonstationary, i.e. the traditional test statistic has a non-standard distribution. Moreover, we do...
Persistent link: https://www.econbiz.de/10009578570
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Testing the diffusion coefficient
Kleinow, Torsten - 2002
In mathematical finance diffusion models are widely used and a variety of different parametric models for the drift and diffusion coefficient coexist in the literature. Since derivative prices depend on the particular parametric model of the diffusion coefficient function of the underlying, a...
Persistent link: https://www.econbiz.de/10009622677
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Estimation and testing for varying coefficients in additive models with marginal integration
Yang, Lijian; Härdle, Wolfgang; Park, Byeong U. - 2002
We propose marginal integration estimation and testing methods for the coefficients of varying coefficient multivariate … regression model. Asymptotic distribution theory is developed for the estimation method which enjoys the same rate of convergence … as univariate function estimation. For the test statistic, asymptotic normal theory is established. These theoretical …
Persistent link: https://www.econbiz.de/10009627286
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Comparison of bootstrap confidence intervals for impulse responses of German monetary systems
Benkwitz, Alexander; Lütkepohl, Helmut; Wolters, Jürgen - 1999
It is argued that standard impulse response analysis based on vector autoregressive models has a number of shortcomings. Although the impulse responses are estimated quantities, measures for sampling variability such as confidence intervals are often not provided. If confidence intervals are...
Persistent link: https://www.econbiz.de/10009580485
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Semiparametric estimation of the intensity of long memory in conditional heteroskedasticity
Giraitis, Liudas; Kokoszka, Piotr; Leipus, Remigijus; … - 1999
The paper is concerned with the estimation of the long memory parameter in a conditionally heteroskedastic model … models ; semiparametric estimation ; modified R/S ; KPSS and V/S statistics ; periodogram …
Persistent link: https://www.econbiz.de/10009581091
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Adaptive estimation for a time inhomogeneous stochastic-volatility model
Härdle, Wolfgang; Spokojnyj, Vladimir G.; Teyssière, … - 2000
problem of online estimation of current values of w = w(T) and a = a(T) from the observations SI , ... ,ST. We propose an … adaptive method of estimation which does not use any information about time homogeneity of the obscured process. We apply this …
Persistent link: https://www.econbiz.de/10009582392
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Bootstrapping impulse responses in VAR analyses
Lütkepohl, Helmut - 2000
Because the parameters of vector autoregressive processes are often difficult to interpret directly, econometricians use quantities derived from the parameters to disentangle the relationships between the variables. Bootstrap methods are often used for inference on the derived quantities....
Persistent link: https://www.econbiz.de/10009583428