Modelo de precificação condicional com heteroscedasticidade: Avaliação de fundos brasileiros

Leandro Santos da Costa, Frances Fischberg Blank, Fernando Luiz Cyrino Oliveira and Cristian Enrique Muñoz Villalobos

RAE - Revista de Administração de Empresas, 2019, vol. 59, issue 4

Abstract: Empirical studies have revealed that the conditional Capital Asset Pricing Model (CAPM) has a higher explanatory power than its unconditional version, particularly for the model in state-space form where the beta is estimated using Kalman filter. Most empirical analyses are based on stock portfolios to explain financial anomalies, but only a few studies proposed improving investment fund performance. The main contribution of this study is the assessment of Brazilian investment funds through traditional measures estimated from the CAPM model in state-space form with heteroscedastic and homoscedastic errors com­pared to alternative models, such as the unconditional CAPM and a four-factor model. Using a sample of stock funds from May 2005–April 2015, the results indicate that the conditional CAPM model produces better results than the alternative models, providing better performance evaluation practices for funds in both stock-picking and market-timing ability.

Date: 2019
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