The Asymmetry of IBEX-35 Returns With TAR Models

• Autores: César Villazón Hervás, María Dolores Márquez Cebrián
• Localización: Documents de Treball ( Universitat Autònoma de Barcelona. Departament d'Economia de l'Empresa ), ISSN-e 1988-7736, Nº. 3, 1999
• Idioma: inglés
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• Resumen

  • It is a general belief in the market that the behaviour of stock prices in a bull market is different from that in a bear market; the magnitude of returns could be different when the return is positive or when it is negative. This asymmetric pattern shows a form of nonlinearity. The aim of this paper is to model the possible asymmetry of the daily returns series of IBEX-35 composite index from 1988 to 1996 with the self-exciting threshold autoregressive (SETAR) model.