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    Permanent vs transitory components and economic fundamentals

    Garratt, Anthony and Robertson, D. and Wright, Stephen (2004) Permanent vs transitory components and economic fundamentals. Working Paper. Birkbeck, University of London, London, UK.

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    Any non-stationary series can be decomposed into permanent (or “trend”) and transitory (or “cycle”) components. Typically some atheoretic pre-filtering procedure is applied to extract the permanent component. This paper argues that analysis of the fundamental underlying stationary economic processes should instead be central to this process. We present a new derivation of multivariate Beveridge-Nelson permanent and transitory components, whereby the latter can be derived explicitly as a weighting of observable stationary processes. This allows far clearer economic interpretations. Different assumptions on the fundamental stationary processes result in distinctly different results; but this reflects deep economic uncertainty. We illustrate with an example using Garratt et al’s (2003a) small VECM model of the UK economy.


    Item Type: Monograph (Working Paper)
    Additional Information: BWPEF 0501
    Keyword(s) / Subject(s): Multivariate Beveridge-Nelson, VECM, Economic Fundamentals, Decomposition
    School: Birkbeck Faculties and Schools > Faculty of Business and Law > Birkbeck Business School
    Depositing User: Administrator
    Date Deposited: 05 Apr 2019 08:50
    Last Modified: 02 Aug 2023 17:50


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