Abstract
The effect of temporal aggregation on several time-series is considered. For several classes of time-series models it is well-known that the classes are closed under temporal aggregation, aggregation of a high frequency process yields a corresponding low frequency process in the same class. Examples are wide stationary ARMA and weak GARCH. We use two simple lemmas to obtain these results in a more direct way. The lemmas allow for generalizations in several directions. Discussed are fractionally differenced time-series, heavy tailed stable type processes, and GARCH-M.
The author would like to thank Theo E. Nijman and Arie L. Rijkeboer for valuable discussions and helpful suggestions.
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© 1994 Physica-Verlag Heidelberg
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Drost, F.C. (1994). Temporal Aggregation of Time-Series. 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_2
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DOI: https://doi.org/10.1007/978-3-642-48666-1_2
Publisher Name: Physica-Verlag HD
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