Testing for ARCH in ARCH-in-Mean Model
AbstractAn issue that arises in applications involving the ARCH-in-Mean (ARCH-M) model is whether or not the error variance is constant over time. A proper statistical formulation of this as a test of hypothesis presents two difficulties. First, the model does not satisfy the standard regularity conditions because a nuisance parameter becomes unidentified under the null hypothesis and consequently the usual tests, such as the Lagrange Multiplier test, and their distribution theory require modification.
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Bibliographic InfoPaper provided by School of Economics, La Trobe University in its series Working Papers with number 1997.24.
Length: 18 pages
Date of creation: 1997
Date of revision:
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