Consistent Testing for Structural Change at the Ends of the Sample

Michael McCracken

A chapter in 30th Anniversary Edition, 2012, pp 133-169 from Emerald Group Publishing Limited

Abstract: In this chapter we provide analytical and Monte Carlo evidence that Chow and Predictive tests can be consistent against alternatives that allow structural change to occur at either end of the sample. Attention is restricted to linear regression models that may have a break in the intercept. The results are based on a novel reparameterization of the actual and potential break point locations. Standard methods parameterize both of these locations as fixed fractions of the sample size. We parameterize these locations as more general integer-valued functions. Power at the ends of the sample is evaluated by letting both locations, as a percentage of the sample size, converge to 0 or 1. We find that for a potential break point function, the tests are consistent against alternatives that converge to 0 or 1 at sufficiently slow rates and are inconsistent against alternatives that converge sufficiently quickly. Monte Carlo evidence supports the theory though large samples are sometimes needed for reasonable power.

Keywords: Structural change; Chow test; Predictive test; intercept correction (search for similar items in EconPapers)
Date: 2012
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Working Paper: Consistent testing for structural change at the ends of the sample (2012)
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Persistent link: https://EconPapers.repec.org/RePEc:eme:aecozz:s0731-9053(2012)0000030010

DOI: 10.1108/S0731-9053(2012)0000030010

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