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Local Power Functions of Tests for Double Unit Roots

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  • Haldrup, Niels Prof.
  • Lildholdt, Peter

Abstract

The purpose of this paper is to characterize three commonly used double unit root tests in terms of their asymptotic local power. To this end, we study a class of nearly doubly integrated processes which in the limit will behave as a weighted integral of a double indexed Ornstein-Uhlenbeck process. Based on a numerical examination of the analytical distributions, a comparison of the tests is made via their asymptotic local power functions.

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  • Haldrup, Niels Prof. & Lildholdt, Peter, 2000. "Local Power Functions of Tests for Double Unit Roots," University of California at San Diego, Economics Working Paper Series qt01j3m1h6, Department of Economics, UC San Diego.
    • Handle: RePEc:cdl:ucsdec:qt01j3m1h6
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    7. Anton Skrobotov, 2013. "Double Unit Roots Testing, GLS-detrending and Uncertainty over the Initial Conditions," Working Papers 0083, Gaidar Institute for Economic Policy, revised 2013.

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