Contraste empírico do modelo CAPM: aproximación á non linealidade para o mercado español de capitais

The CAPM has had a fundamental role in the price formation process. However, its empirical re- sults at the moment of valuing assets have not been completely satisfactory due to, among other ques- tions, the different investor’s behavior to up or down market movements or extreme market movements. Th...

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Bibliographic Details
Main Author: Rubén Lado Sestayo
Format: Article
Language:English
Published: Universidade de Santiago de Compostela 2013-01-01
Series:Revista Galega de Economía
Online Access:http://www.redalyc.org/articulo.oa?id=39129564007
Description
Summary:The CAPM has had a fundamental role in the price formation process. However, its empirical re- sults at the moment of valuing assets have not been completely satisfactory due to, among other ques- tions, the different investor’s behavior to up or down market movements or extreme market movements. This paper analyzes if this investor’s behavior has effects on the equilibrium CAPM valuation. Using a threshold regression model, the empirical evidence for the Spanish stock exchange market supported that asset prices are sensitive to both up and down market movements and extreme market movements. Ad- ditionally, our evidence also indicated no stability as a structural change was found in the equilibrium rela- tionship in the onset of the global financial crisis.
ISSN:1132-2799