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http://hdl.handle.net/10419/61404
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| Title: | | Long memory in German energy price indices  |
| Authors: | | Barros, Carlos P. Caporale, Guglielmo Maria Gil-Alana, Luis A. |
| Issue Date: | | 2012 |
| Series/Report no.: | | Discussion Papers, German Institute for Economic Research, DIW Berlin 1186 |
| Abstract: | | This study examines the long-memory properties of German energy price indices (specifically, import and export prices, as well as producer and consumer prices) for hard coal, lignite, mineral oil and natural gas adopting a fractional integration modelling framework. The analysis is undertaken using monthly data from January 2000 to August 2011. The results suggest nonstationary long memory in the series (with orders of integration equal to or higher than 1) when breaks are not allowed for. However, endogenous break tests indicate a single break in all series except for producer prices for lignite for which two breaks are detected. When such breaks are taken into account, and with autocorrelated disturbances, evidence of mean reversion is found in practically all cases. |
| Subjects: | | Energy prices, Germany fractional integration persistence breaks and outliers |
| JEL: | | C32 E30 |
| Document Type: | | Working Paper |
| Appears in Collections: | | Publikationen von Forscherinnen und Forschern des DIW DIW-Diskussionspapiere
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