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In this paper a test procedure is proposed for the skewness in autoregressive conditional volatility models. The size …
Persistent link: https://www.econbiz.de/10010818623
. However, each test is significantly affected by leptokurtosis. Contrarily to other tests, where skewness is far more … problematic than kurtosis, it has no additional effect for any of the endogenous break tests we analyze. Concerning overall …
Persistent link: https://www.econbiz.de/10010288480
For testing normality we investigate the power of several tests, first of all, the well known test of Jarque and Bera (1980) and furthermore the tests of Kuiper (1960) and Shapiro and Wilk (1965) as well as tests of Kolmogorov-Smirnov and Cramer-von Mises type. The tests on normality are based,...
Persistent link: https://www.econbiz.de/10009323159
. However, each test is significantly affected by leptokurtosis. Contrarily to other tests, where skewness is far more problematic … than kurtosis, it has no additional effect for any of the endogenous break tests we analyze. Concerning overall robustness …
Persistent link: https://www.econbiz.de/10008519860
This paper illustrates the usefulness of resampling based methods in the context of multiple (simultaneous) tests, with emphasis on econometric applications. Economic theory often suggests joint (or simultaneous) hypotheses on econometric models; consequently, the problem of evaluating joint...
Persistent link: https://www.econbiz.de/10005100723
distribution of stock returns is usually rejected in empirical studies, due to excess kurtosis and asymmetry. To model such data …
Persistent link: https://www.econbiz.de/10005100963
This paper illustrates the usefulness of resampling based methods in the context of multiple (simultaneous) tests, with emphasis on econometric applications. Economic theory often suggests joint (or simultaneous) hypotheses on econometric models; consequently, the problem of evaluating joint...
Persistent link: https://www.econbiz.de/10008671569
distribution of stock returns is usually rejected in empirical studies, due to excess kurtosis and asymmetry. To model such data …
Persistent link: https://www.econbiz.de/10008671570
change in kurtosis coefficients under the assumption of equal skewness coefficients and analyzing the change in skewness … coefficients under the assumption of equal kurtosis coefficients. Variances are assumed as heterogeneous for both situations and …
Persistent link: https://www.econbiz.de/10010699561
distribution of stock returns is usually rejected in empirical studies, due to excess kurtosis and asymmetry. To model such data …
Persistent link: https://www.econbiz.de/10005729882