 Comment on "The uncertain unit root in real GNP: A re-examination"Journal of Macroeconomics, 2009, vol. 31, issue 1, 167-172 Abstract: With the objective to settle the often conflicting and inconclusive extant debate on whether the observed secular growth can be characterized by a deterministic or stochastic trend, Darné comes up with an alternative method - the outlier detection methodology and studies the persistence properties of US real GNP for the period 1869-1993. Given that the presence of outliers in a time series - unless detected and adjusted - often render wrong impression on the persistence properties and their implications for long-run growth, Darné's contribution in this regard is significant. Outliers of varied types assume varying persistence profiles, therefore detection of them in the GNP growth is a pre-requisite for characterizing the series in a stochastic or deterministic setting. To further intuition on the exact nature of persistence, I applied fractional integration test of the four real GNP series and found that outlier adjusted GNP series are mean-reverting and are more persistent than original. The rate of convergence of stochastic shocks to long-run mean have important implications for growth dynamics. Keywords: Unit; root; Outlier; methodology; Stochastic; trend; in; GNP; Long-memory (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:jmacro:v:31:y:2009:i:1:p:167-172 Access Statistics for this article Journal of Macroeconomics is currently edited by Douglas McMillin and Theodore Palivos More articles in Journal of Macroeconomics from Elsevier |
Is your work missing from RePEc? Here is how to contribute.
Questions or problems? Check the EconPapers FAQ or send mail to .
EconPapers is hosted by the
School of Business at Örebro University.