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Luiz Lima and Breno Neri
''Omitted Asymmetric Persistence and Conditional Heteroskedasticity''
( 2006, Vol. 3 No.5 )
We show that asymmetric persistence induces ARCH effects, but the LM-ARCH test has power against it. On the other hand, the test for asymmetric dynamics proposed by Koenker and Xiao (2004) has correct size under the presence of ARCH errors. These results suggest that the LM-ARCH and the Koenker-Xiao tests may be used in applied research as complementary tools.
JEL: C1 - Econometric and Statistical Methods: General
Manuscript Received : Feb 20 2006 Manuscript Accepted : Feb 20 2006

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