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Bootstrap tests for unit root AR(1) models

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  • Ferretti, Nélida

Abstract

In this paper, we propose bootstrap tests for unit roots in first-order autoregressive models. We provide the bootstrap functional limit theory needed to prove the asymptotic validity of these tests both for independent and autoregressive errors; in this case, the usual corrections due to innovations dependence can be avoided. We also present a power empirical study comparing these tests with existing alternative methods.

Suggested Citation

  • Ferretti, Nélida, 1993. "Bootstrap tests for unit root AR(1) models," DES - Working Papers. Statistics and Econometrics. WS 3733, Universidad Carlos III de Madrid. Departamento de Estadística.
    • Handle: RePEc:cte:wsrepe:3733
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    References listed on IDEAS

    as
    1. Said, Said E., 1991. "Unit-roots test for time-series data with a linear time trend," Journal of Econometrics, Elsevier, vol. 47(2-3), pages 285-303, February.
    2. Evans, G B A & Savin, N E, 1984. "Testing for Unit Roots: 2," Econometrica, Econometric Society, vol. 52(5), pages 1241-1269, September.
    3. Phillips, P C B, 1987. "Time Series Regression with a Unit Root," Econometrica, Econometric Society, vol. 55(2), pages 277-301, March.
    4. Phillips, P C B, 1987. "Time Series Regression with a Unit Root," Econometrica, Econometric Society, vol. 55(2), pages 277-301, March.
    5. Evans, G B A & Savin, N E, 1981. "Testing for Unit Roots: 1," Econometrica, Econometric Society, vol. 49(3), pages 753-779, May.
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    Keywords

    Autoregressive processes;

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