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Testing for unit roots using economics

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  • Rómulo Chumacero

Abstract

This paper considers the economic implications of having a unit root (UR) on the stochastic process of variables such as consumption or GDP. Using a variety of models, we develop indirect tests for unit roots based on sharp distinctions that should arise when the scale variable is difference stationary (DS) or trend stationary (TS). We show that these tests do not feature the undesirable size-power trade-off that characterizes traditional UR tests and apply them to a range of countries.

Suggested Citation

  • Rómulo Chumacero, 2001. "Testing for unit roots using economics," Working Papers Central Bank of Chile 102, Central Bank of Chile.
    • Handle: RePEc:chb:bcchwp:102
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    File URL: https://www.bcentral.cl/documents/33528/133326/DTBC_102.pdf
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    Cited by:

    1. Rómulo A. Chumacero, 2005. "A Toolkit for Analyzing Alternative Policies in the Chilean Economy," Central Banking, Analysis, and Economic Policies Book Series, in: Rómulo A. Chumacero & Klaus Schmidt-Hebbel & Norman Loayza (Series Editor) & Klaus Schmidt-Hebbel (S (ed.),General Equilibrium Models for the Chilean Economy, edition 1, volume 9, chapter 8, pages 261-302, Central Bank of Chile.
    2. Alberto Humala, 2005. "Interest rate pass-through and financial crises: do switching regimes matter? the case of Argentina," Applied Financial Economics, Taylor & Francis Journals, vol. 15(2), pages 77-94.
    3. Raimundo Soto M. & Matías Tapia G., 2000. "Seasonal Cointegration in Money Demand," Journal Economía Chilena (The Chilean Economy), Central Bank of Chile, vol. 3(3), pages 57-71, December.
    4. Rómulo Chumacero Escudero, 2000. "Se busca una raíz unitaria: evidencia para Chile," Estudios de Economia, University of Chile, Department of Economics, vol. 27(1 Year 20), pages 55-68, June.
    5. Solange Berstein & J. Rodrigo Fuentes, 2004. "Is There Lendign Rate Stickiness in the Chilean Banking Industry?," Central Banking, Analysis, and Economic Policies Book Series, in: Luis Antonio Ahumada & J. Rodrigo Fuentes & Norman Loayza (Series Editor) & Klaus Schmidt-Hebbel (Se (ed.),Banking Market Structure and Monetary Policy, edition 1, volume 7, chapter 6, pages 183-210, Central Bank of Chile.

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    More about this item

    JEL classification:

    • C12 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Hypothesis Testing: General
    • C15 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Statistical Simulation Methods: General
    • E43 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Interest Rates: Determination, Term Structure, and Effects

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