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The uncertain unit root in real GNP: A re-examination

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  • Darné, Olivier

Abstract

In this paper, we study the nature of the trend (deterministic or stochastic) for long spans of US GNP data (1869-1993). This distinction is important for macroeconomic theories, because the two models imply very different source of output fluctuations due to (transitory or permanent) shocks. We show, using an alternative method relative to the previous studies, that the period of turmoil experienced from 1929 to 1949 can be explained by several large shocks and some of them have a permanent effect due to the Great Depression and World War II. We also find evidence in favor of stochastic trend. These results show that the persistence in US output can be explained both by infrequent but significant economic and financial events (infrequent large shocks) and by period-by-period permanent innovations (frequent small shocks), such as productivity shocks resulting from technological changes, as the stochastic trend would imply.

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Bibliographic Info

Article provided by Elsevier in its journal Journal of Macroeconomics.

Volume (Year): 31 (2009)
Issue (Month): 1 (March)
Pages: 153-166

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Handle: RePEc:eee:jmacro:v:31:y:2009:i:1:p:153-166

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Web page: http://www.elsevier.com/locate/inca/622617

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Keywords: GNP Output persistence Unit root test Outliers;

References

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Citations

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Cited by:
  1. David Grreasley, 2010. "Cliometrics and Time Series Econometrics: Some Theory and Applications," Working Papers in Economics 10/56, University of Canterbury, Department of Economics and Finance.
  2. Christoph Hanck & Robert Czudaj, 2013. "Nonstationary-Volatility Robust Panel Unit Root Tests and the Great Moderation," Ruhr Economic Papers 0434, Rheinisch-Westfälisches Institut für Wirtschaftsforschung, Ruhr-Universität Bochum, Universität Dortmund, Universität Duisburg-Essen.
  3. Antonio E. Noriega & Daniel Ventosa-Santaulària, 2010. "Spurious Long-Horizon Regression in Econometrics," Working Papers 2010-06, Banco de México.
  4. Antonio E. Noriega & Cid Alonso Rodríguez-Pérez, 2011. "Stationarity, structural breaks, and economic growth in Mexico: 1895-2008," Working Papers 2011-11, Banco de México.
  5. Lyócsa, Štefan & Výrost, Tomáš & Baumöhl, Eduard, 2011. "Unit-root and stationarity testing with empirical application on industrial production of CEE-4 countries," MPRA Paper 29648, University Library of Munich, Germany.

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