A complete class of tests when the likelihood is locally asymptotically quadratic

  • Werner Ploberger

    Research output: Contribution to journalArticlepeer-review

    Abstract

    The construction of an asymptotically quadratic class of tests for testing one parametric restriction was studied. The parametric restriction involved approximation of likelihood function by the proposed locally asymptotic quadratic function. The application of random variables in the quadratic form solved the problem of unit-root testing. The results show that the likelihood ratio (LR) test was not within the proposed class.

    Original languageEnglish
    Pages (from-to)67-94
    Number of pages28
    JournalJournal of Econometrics
    Volume118
    Issue number1-2
    DOIs
    StatePublished - Jan 2004

    Keywords

    • Asymptotic theory
    • Complete class theorems
    • Dickey-Fuller test
    • Likelihood ratio test
    • Optimal tests

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