Showing 1 - 10 of 27
This paper provides a test of convexity of a regression function. This test is based on the least squares splines. The test statistic is shown to be asymptotically of size equal to the nominal level, while diverging to infinity if the convexity is misspecified. Therefore, the test is consistent...
Persistent link: https://www.econbiz.de/10010956509
In this paper we introduce a bootstrap procedure to test parameter restrictions in vector autoregressive models which … is robust in cases of conditionally heteroskedastic error terms. The adopted wild bootstrap method does not require any … Monte Carlo investigation empirical size and power properties of the new method are illustrated. We compare the bootstrap …
Persistent link: https://www.econbiz.de/10010956345
bootstrap for estimating the variance of the index estimator and a variant of bagging for numerically stabilizing its variance …
Persistent link: https://www.econbiz.de/10010956351
One puzzling behavior of asset returns for various frequencies is the often observed positive autocorrelation at lag 1. To some extent this can be explained by standard asset pricing models when assuming time varying risk premia. However, one often finds better results when directly fitting an...
Persistent link: https://www.econbiz.de/10010956379
observations. Accordingly, we propose an i.i.d.-type bootstrap to determine the critical value for the test. …
Persistent link: https://www.econbiz.de/10010956411
assumptions on weak exogeneity and cointegration. We consider OLS-based tests on long-run relationships, weak exogeneity and short … conditional heteroskedasticity. We show that the wild bootstrap provides convenient critical values for the considered OLS …-based statistics under both homoskedastic and conditionally heteroskedastic model errors. The wild bootstrap is easy to implement and …
Persistent link: https://www.econbiz.de/10010956432
asymptotic distribution is derived and shown to be approximated by a bootstrap procedure. …
Persistent link: https://www.econbiz.de/10010956457
In this paper we consider the polynomial regression model in the presence of multiplicative measurement error in the predictor. Consistent parameter estimates and their associated standard errors are derived. Two general methods are considered, with the methods differing in their assumptions...
Persistent link: https://www.econbiz.de/10010956460
In many regression applications both the independent and dependent variables are measured with error. When this happens, conventional parametric and nonparametric regression techniques are no longer valid. We consider two different nonparametric techniques, regression splines and kernel...
Persistent link: https://www.econbiz.de/10010956490
asymptotically for the bootstrap to be valid. However, certain model-based bootstrap methods remain valid for some interesting … bootstrap schemes remain valid for supremum-type functionals as long as they mimic the corresponding finite-dimensional joint … distributions consistently. As an example, we investigate a finite order Markov chain bootstrap in the context of a general …
Persistent link: https://www.econbiz.de/10010956559