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Se busca una raíz unitaria: evidencia para Chile

  • Rómulo Chumacero Escudero


Este documento presenta evidencia contundente en contra de la hipótesis nula de que series tales como el IMACEC, el consumo o el PIB chilenos presentan una raíz unitaria. Esta evidencia se apoya en resultados derivados en Chumacero (2000) que muestran que en caso que alguna de estas variables de escala sea estacionaria en diferencia, los retornos de activos disponibles para los agentes deben presentar un comportamiento que se encuentra reñido con el observado en Chile. Por ello, debe tenerse gran cautela en no utilizar modelos econométricos en los que se impongan raíces unitarias sobre la base de tests tradicionales.

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Article provided by University of Chile, Department of Economics in its journal Estudios de Economia.

Volume (Year): 27 (2000)
Issue (Month): 1 Year 2000 (June)
Pages: 55-68

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Handle: RePEc:udc:esteco:v:27:y:2000:i:1:p:55-68
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  1. Kwiatkowski, D. & Phillips, P.C.B. & Schmidt, P., 1990. "Testing the Null Hypothesis of Stationarity Against the Alternative of Unit Root : How Sure are we that Economic Time Series have a Unit Root?," Papers 8905, Michigan State - Econometrics and Economic Theory.
  2. Christiano, Lawrence J. & Eichenbaum, Martin, 1990. "Unit roots in real GNP: Do we know, and do we care?," Carnegie-Rochester Conference Series on Public Policy, Elsevier, vol. 32(1), pages 7-61, January.
  3. Bierens, Herman J., 1997. "Testing the unit root with drift hypothesis against nonlinear trend stationarity, with an application to the US price level and interest rate," Journal of Econometrics, Elsevier, vol. 81(1), pages 29-64, November.
  4. Rómulo Chumacero & Jorge Quiroz, 1996. "La Tasa Natural de Crecimiento de la Economía Chilena: 1985-1996," Latin American Journal of Economics-formerly Cuadernos de Economía, Instituto de Economía. Pontificia Universidad Católica de Chile., vol. 33(100), pages 453-472.
  5. Romulo Chumacero, 2001. "Testing For Unit Roots Using Economics," Computing in Economics and Finance 2001 2, Society for Computational Economics.
  6. Nelson, Charles R. & Plosser, Charles I., 1982. "Trends and random walks in macroeconmic time series : Some evidence and implications," Journal of Monetary Economics, Elsevier, vol. 10(2), pages 139-162.
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