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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

Lag selection in subset VAR models with an application to a US monetary system

Brüggemann, Ralf; Lütkepohl, Helmut - 2000

Alternative modeling strategies for specifying subset VAR models are considered. It is shown that under certain conditions a testing procedure based on t-ratios is equivalent to sequentially eliminating lags that lead to the largest improvement in a prespecified model selection criterion. A...

Persistent link: https://www.econbiz.de/10009583885

Nonparametric autoregression with multiplicative volatility and additive mean

Yang, Lijian; Härdle, Wolfgang; Nielsen, Jens Perch - 1998

dealing with more than one lag. When the mean has an additive structure, however, better estimation methods are available … estimation of the conditional mean, it is equally if not more important to measure the future risk of the series along with the … interpretation of each lagged value's influence on such a function. In this paper we consider the joint estimation of both the …

Persistent link: https://www.econbiz.de/10009578559

Nonparametric estimation and testing of interaction in additive models

Sperlich, Stefan; Tjostheim, Dag; Yang, Lijian - 1998

Estimation …

Persistent link: https://www.econbiz.de/10009574875

Nonparametric estimation of generalized impulse response function

Tschernig, Rolf; Yang, Lijian - 2000

A local linear estimator of generalized impulse response (GIR) functions for nonlinear conditional heteroskedastic autoregressive processes is derived and shown to be asymptotically normal. A plug-in bandwidth is obtained that minimizes the asymptotical mean squared error of the GIR estimator. A...

Persistent link: https://www.econbiz.de/10009612034

Sources of German unemployment : a structural vector error correction analysis

Brüggemann, Ralf - 2001

. We compare these results to results from a standard SVECM and find that, using the Subset VECM reduces estimation …

Persistent link: https://www.econbiz.de/10009613616