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Purpose Part I of this article ( European Business Review , Volume 28, Issue 1) offered an overview of unobserved heterogeneity in the context of partial least squares structural equation modeling (PLS-SEM), its prevalence and challenges for social sciences researchers. This paper aims to...
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deviate from the null hypothesis of white noise. Moreover, we have found evidence of nonlinearity but strong evidence against … chaos for the returns series. Further tests show that the source of nonlinearity is rather different. Hence, the …
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. Its performance is compared with that of standard models of conditional heteroskedasticity such as GARCH. This has … for the A-PARCH model that are derived for the purpose. The role of the heteroskedasticity parameter of the A …
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