21 research outputs found
Testing for serial independence in vector autoregressive models
We consider tests for serial independence of arbitrary finite order for the innovations in vector autoregressive models. The tests are expressed as L2-type criteria involving the difference of the joint empirical characteristic function and the product of corresponding marginals. Asymptotic as well as Monte-Carlo results are presented. © 2018, Springer-Verlag GmbH Germany, part of Springer Nature
Goodness-of-fit tests for multivariate stable distributions based on the empirical characteristic function
We consider goodness-of-fit testing for multivariate stable distributions. The proposed test statistics exploit a characterizing property of the characteristic function of these distributions and are consistent under some conditions. The asymptotic distribution is derived under the null hypothesis as well as under local alternatives. Conditions for an asymptotic null distribution free of parameters and for affine invariance are provided. Computational issues are discussed in detail and simulations show that with proper choice of the user parameters involved, the new tests lead to powerful omnibus procedures for the problem at hand. © 2015 Elsevier Inc
A Cramér-von Mises test for symmetry of the error distribution in asymptotically stationary stochastic models
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Testing nonstationary and absolutely regular nonlinear time series models
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