Estimating ARCH Models when the Coefficients are Allowed to be Equal to Zero

In order to be consistent with volatility processes, the autoregressive conditional heteroscedastic (ARCH) models are constrained to have nonnegative coefficients. The estimators incorporating these constraints possess non standard asymptotic distributions when the true parameter has zero coefficien...

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Bibliographic Details
Main Authors: Christian Francq, Jean-Michel Zakoïan
Format: Article
Language:English
Published: Austrian Statistical Society 2016-04-01
Series:Austrian Journal of Statistics
Online Access:http://www.ajs.or.at/index.php/ajs/article/view/284