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Testing Covariance Stationarity

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Author Info
Zhijie Xiao
Luiz Renato Lima

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Abstract

In this paper, we show that the widely used stationarity tests such as the Kwiatkowski Phillips, Schmidt, and Shin (KPSS) test have power close to size in the presence of time-varying unconditional variance. We propose a new test as a complement of the existing tests. Monte Carlo experiments show that the proposed test possesses the following characteristics: (i) in the presence of unit root or a structural change in the mean, the proposed test is as powerful as the KPSS and other tests; (ii) in the presence of a changing variance, the traditional tests perform badly whereas the proposed test has high power comparing to the existing tests; (iii) the proposed test has the same size as traditional stationarity tests under the null hypothesis of stationarity. An application to daily observations of return on U.S. Dollar/Euro exchange rate reveals the existence of instability in the unconditional variance when the entire sample is considered, but stability is found in subsamples.

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Publisher Info
Article provided by Taylor and Francis Journals in its journal Econometric Reviews.

Volume (Year): 26 (2007)
Issue (Month): 6 ()
Pages: 643-667
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Handle: RePEc:taf:emetrv:v:26:y:2007:i:6:p:643-667

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Related research
Keywords: Asymptotic theory; KPSS; Stationarity testing; Time-varying variance;

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References listed on IDEAS
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  1. Neri, Marcelo Cortes & Moura, Rodrigo Leandro de, 2005. "La institucionalidad del salario mínimo en Brasil," Economics Working Papers (Ensaios Economicos da EPGE) 607, Graduate School of Economics, Getulio Vargas Foundation (Brazil). [Downloadable!]
  2. Peter C.B. Phillips & Victor Solo, 1989. "Asymptotics for Linear Processes," Cowles Foundation Discussion Papers 932, Cowles Foundation, Yale University. [Downloadable!]
  3. Monteiro, Paulo Klinger & Page Junior, Frank H., 2006. "Resultados uniformemente seguros e equilíbrio de Nash em jogos compactos," Economics Working Papers (Ensaios Economicos da EPGE) 621, Graduate School of Economics, Getulio Vargas Foundation (Brazil). [Downloadable!]
  4. Flôres Junior, Renato Galvão & Fontoura, Maria Paula & Santos, Rogério Guerra, 2006. "Foreign direct investment spillovers in Portugal: additional lessons from a country study," Economics Working Papers (Ensaios Economicos da EPGE) 618, Graduate School of Economics, Getulio Vargas Foundation (Brazil). [Downloadable!]
    Other versions:
  5. Rubens Penha Cysne, 2006. "Income Inequality in a Job-Search Model With Heterogeneous Discount Factors," Economia, ANPEC - Associação Nacional dos Centros de Pósgraduação em Economia [Brazilian Association of Graduate Programs in Economics], vol. 7(2), pages 217-224. [Downloadable!]
  6. Giraitis, Liudas & Kokoszka, Piotr & Leipus, Remigijus & Teyssiere, Gilles, 2003. "Rescaled variance and related tests for long memory in volatility and levels," Journal of Econometrics, Elsevier, vol. 112(2), pages 265-294, February. [Downloadable!] (restricted)
  7. Andrews, Donald W K, 1991. "Heteroskedasticity and Autocorrelation Consistent Covariance Matrix Estimation," Econometrica, Econometric Society, vol. 59(3), pages 817-58, May. [Downloadable!] (restricted)
    Other versions:
  8. Pagan, Adrian R. & Schwert, G. William, 1990. "Alternative models for conditional stock volatility," Journal of Econometrics, Elsevier, vol. 45(1-2), pages 267-290. [Downloadable!] (restricted)
    Other versions:
  9. Cysne, Rubens Penha, 2006. "Income Inequality in a Job-Search Model With Heterogeneous Discount Factors (Revised Version, Forthcoming 2006, Revista Economia)," Economics Working Papers (Ensaios Economicos da EPGE) 611, Graduate School of Economics, Getulio Vargas Foundation (Brazil). [Downloadable!]
  10. Pessoa, Samuel de Abreu, 2006. "Perspectivas de Crescimento no Longo Prazo para o Brasil: Questões em Aberto," Economics Working Papers (Ensaios Economicos da EPGE) 609, Graduate School of Economics, Getulio Vargas Foundation (Brazil). [Downloadable!]
  11. repec:cup:etheor:v:12:y:1996:i:4:p:724-31 is not listed on IDEAS
  12. Faust, Jon, 1996. "Near Observational Equivalence and Theoretical size Problems with Unit Root Tests," Econometric Theory, Cambridge University Press, vol. 12(04), pages 724-731, October. [Downloadable!]
  13. Monteiro, Paulo Klinger, 2006. "First-Price Auction Symmetric Equilibria with a General Distribution," Economics Working Papers (Ensaios Economicos da EPGE) 616, Graduate School of Economics, Getulio Vargas Foundation (Brazil). [Downloadable!]
    Other versions:
  14. Jean-Marie Dufour, 1997. "Some Impossibility Theorems in Econometrics with Applications to Structural and Dynamic Models," Econometrica, Econometric Society, vol. 65(6), pages 1365-1388, November.
  15. Flôres Junior, Renato Galvão & Watanuki, Masakazu, 2006. "Is China a Northern Partner to Mercosul?," Economics Working Papers (Ensaios Economicos da EPGE) 617, Graduate School of Economics, Getulio Vargas Foundation (Brazil). [Downloadable!]
  16. Jansson, Michael, 2002. "Consistent Covariance Matrix Estimation For Linear Processes," Econometric Theory, Cambridge University Press, vol. 18(06), pages 1449-1459, December. [Downloadable!]
  17. Araújo, Aloísio Pessoa de & Funchal, Bruno, 2006. "How much debtors' punishment?," Economics Working Papers (Ensaios Economicos da EPGE) 615, Graduate School of Economics, Getulio Vargas Foundation (Brazil). [Downloadable!]
  18. Robert F. Engle & Jose Gonzalo Rangel, 2005. "The Spline GARCH Model for Unconditional Volatility and its Global Macroeconomic Causes," Working Papers 2005/13, Czech National Bank, Research Department. [Downloadable!]
  19. Pagan, Adrian R. & Schwert, G. William, 1990. "Testing for covariance stationarity in stock market data," Economics Letters, Elsevier, vol. 33(2), pages 165-170, June. [Downloadable!] (restricted)
  20. Lima, Luiz Renato Regis de Oliveira & Neri, Breno de Andrade Pinheiro, 2006. "Comparing Value-at-Risk Methodologies," Economics Working Papers (Ensaios Economicos da EPGE) 629, Graduate School of Economics, Getulio Vargas Foundation (Brazil). [Downloadable!]
    Other versions:
  21. Loretan, Mico & Phillips, Peter C. B., 1994. "Testing the covariance stationarity of heavy-tailed time series: An overview of the theory with applications to several financial datasets," Journal of Empirical Finance, Elsevier, vol. 1(2), pages 211-248, January. [Downloadable!] (restricted)
  22. Flôres Junior, Renato Galvão & Watanuki, Masakazu, 2006. "Integration Options for Mercosul - An Investigation Using the AMIDA Model," Economics Working Papers (Ensaios Economicos da EPGE) 610, Graduate School of Economics, Getulio Vargas Foundation (Brazil). [Downloadable!]
  23. Ploberger, Werner & Kramer, Walter, 1992. "The CUSUM Test with OLS Residuals," Econometrica, Econometric Society, vol. 60(2), pages 271-85, March. [Downloadable!] (restricted)
  24. Peter C.B. Phillips, 1985. "Time Series Regression with a Unit Root," Cowles Foundation Discussion Papers 740R, Cowles Foundation, Yale University, revised Feb 1986. [Downloadable!]
    Other versions:
  25. Michael Frömmel & Lukas Menkhoff, 2003. "Increasing exchange rate volatility during the recent float," Applied Financial Economics, Taylor and Francis Journals, vol. 13(12), pages 857-863, December. [Downloadable!] (restricted)
  26. Robert M. De Jong & James Davidson, 2000. "Consistency of Kernel Estimators of Heteroscedastic and Autocorrelated Covariance Matrices," Econometrica, Econometric Society, vol. 68(2), pages 407-424, March.
    Other versions:
  27. Franco Neto, Afonso Arinos de Mello & Issler, João Victor & Guillén, Osmani Teixeira de Carvalho, 2006. "The Welfare Cost of Macroeconomic Uncertainty in the Post-War Period," Economics Working Papers (Ensaios Economicos da EPGE) 624, Graduate School of Economics, Getulio Vargas Foundation (Brazil). [Downloadable!]
    Other versions:
  28. Bart Hobijn & Philip Hans Franses & Marius Ooms, 2004. "Generalizations of the KPSS-test for stationarity," Statistica Neerlandica, Netherlands Society for Statistics and Operations Research, vol. 58(4), pages 483-502. [Downloadable!] (restricted)
  29. Peter C.B. Phillips, 1993. "Fully Modified Least Squares and Vector Autoregression," Cowles Foundation Discussion Papers 1047, Cowles Foundation, Yale University. [Downloadable!]
    Other versions:
  30. Moura, Rodrigo Leandro de & Neri, Marcelo Cortes, 2006. "Impactos da Nova Lei de Pisos Salariais Estaduais," Economics Working Papers (Ensaios Economicos da EPGE) 625, Graduate School of Economics, Getulio Vargas Foundation (Brazil). [Downloadable!]
  31. Benedikt M. Poetscher, 2002. "Lower Risk Bounds and Properties of Confidence Sets for Ill-Posed Estimation Problems with Applications to Spectral Density and Persistence Estimation, Unit Roots, and Estimation of Long Memory Parame," Econometrica, Econometric Society, vol. 70(3), pages 1035-1065, May. [Downloadable!] (restricted)
    Other versions:
  32. Leybourne, S J & McCabe, B P M, 1994. "A Consistent Test for a Unit Root," Journal of Business & Economic Statistics, American Statistical Association, vol. 12(2), pages 157-66, April.
  33. Newey, Whitney K & West, Kenneth D, 1994. "Automatic Lag Selection in Covariance Matrix Estimation," Review of Economic Studies, Blackwell Publishing, vol. 61(4), pages 631-53, October. [Downloadable!] (restricted)
    Other versions:
  34. Bollerslev, Tim, 1986. "Generalized autoregressive conditional heteroskedasticity," Journal of Econometrics, Elsevier, vol. 31(3), pages 307-327, April. [Downloadable!] (restricted)
  35. Kim, Kiwhan & Schmidt, Peter, 1993. "Unit root tests with conditional heteroskedasticity," Journal of Econometrics, Elsevier, vol. 59(3), pages 287-300, October. [Downloadable!] (restricted)
  36. Svaiter, Benar Fux & Monteiro, Paulo Klinger & Page Junior, Frank H., 2006. "Exclusão e multidimensionalidade de tipos em leilões ótimos," Economics Working Papers (Ensaios Economicos da EPGE) 623, Graduate School of Economics, Getulio Vargas Foundation (Brazil). [Downloadable!]
  37. Cysne, Rubens Penha, 2006. "An Intra-Household Approach to the Welfare Costs of Inflation (Revised Version, Forthcoming 2006, Estudos Econômicos)," Economics Working Papers (Ensaios Economicos da EPGE) 612, Graduate School of Economics, Getulio Vargas Foundation (Brazil). [Downloadable!]
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