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Title:A comparison of alternative approaches to sup-norm goodness of fit tests with estimated parameters PDF Logo
Authors:Parker, Thomas
Issue Date:2010
Series/Report no.:cemmap working paper CWP34/10
Abstract:Goodness of fit tests based on sup-norm statistics of empirical processes have nonstandard limiting distributions when the null hypothesis is composite-that is, when parameters of the null model are estimated. Several solutions to this problem have been suggested, including the calculation of adjusted critical values for these nonstandard distributions and the transformation of the empirical process such that statistics based on the transformed process are asymptotically distribution-free. The approximation methods proposed by Durbin (1985) can be applied to compute appropriate critical values for tests based on sup-norm statistics. The resulting tests have quite accurate size, a fact which has gone unrecognized in the econometrics literature. Some justification for this accuracy lies in the similar features that Durbin's approximation methods share with the theory of extrema for Gaussian random fields and for Gauss-Markov processes. These adjustment techniques are also related to the transformation methodology proposed by Khmaladze (1981) through the score function of the parametric model. Monte Carlo experiments suggest that these two testing strategies are roughly comparable to one another and more powerful than a simple bootstrap procedure.
Subjects:Goodness of fit test
Estimated parameters
Gaussian process
Gauss-Markov process
Boundary crossing probability
Martingale transformation
JEL:C12
C14
C46
Persistent Identifier of the first edition:doi:10.1920/wp.cem.2010.3410
Document Type:Working Paper
Appears in Collections:cemmap working papers, Centre for Microdata Methods and Practice, Institute for Fiscal Studies (IFS)

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