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Inhaltsbereich: Institut für Arbeitsmarkt- und Berufsforschung

Long-run identification in a fractionally integrated system

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Abstract

"We propose an extension of structural fractionally integrated vector autoregressive models that avoids certain undesirable effects for impulse responses if long-run identification restrictions are imposed. We derive its Granger representation, investigate the effects of long-run restrictions and clarify their relation to finite-horizon schemes. It is illustrated by asymptotic analysis and simulations that enforcing integer integration orders can have severe consequences for impulse responses. In a system of US real output and aggregate prices effects of structural shocks strongly depend on integration order specification. In the statistically preferred fractional model the long-run restricted shock has only very short-lasting influence on GDP." (Author's abstract, IAB-Doku) ((en))

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Bibliografische Daten

Tschernig, Rolf; Weber, Enzo; Weigand, Roland (2010): Long-run identification in a fractionally integrated system. (Regensburger Diskussionsbeiträge zur Wirtschaftswissenschaft, 447; University of Regensburg working papers in business, economics and management information system, 447), Regensburg, 33 S.
 

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