Abstract
We consider the null distribution of empirical autocorrelation coefficients of stationary time series under nonstandard circumstances. We show that this null distribution is not robust to ARCH-effects and to non-existing variances, both of which are typical for common stock returns. These results are then applied to several stocks traded on the Frankfurt stock exchange, with the result that the ”significance” of empirical autocorrelations is in general reduced.
We are grateful to “Deutsche Finanzdatenbank” (DFDB), in particular to Torsten Lüdeke, for the data used in this report, to an unknown referee for helpful insights and comments, to Victor Ng for providing us with his EZARCH software for the estimation of ARCH-models, and to “Deutsche Forschungsgemeinschaft” (DFG) for additional support.
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© 1994 Physica-Verlag Heidelberg
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Krämer, W., Runde, R. (1994). Some Pitfalls in Using Empirical Autocorrelations to Test for Zero Correlation among Common Stock Returns. In: Kaehler, J., Kugler, P. (eds) Econometric Analysis of Financial Markets. Studies in Empirical Economics. Physica-Verlag HD. https://doi.org/10.1007/978-3-642-48666-1_1
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DOI: https://doi.org/10.1007/978-3-642-48666-1_1
Publisher Name: Physica-Verlag HD
Print ISBN: 978-3-642-48668-5
Online ISBN: 978-3-642-48666-1
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