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Asset Pricing Model and the Liquidity Effect: Empirical Evidence in the Brazilian Stock Market

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  • Márcio André Veras Machado

    (Universidade Federal da Paraíba)

  • Otávio Ribeiro de Medeiros

    (Universidade de Brasília)

Abstract

This paper is aims to analyze whether a liquidity premium exists in the Brazilian stock market. As a second goal, we include liquidity as an extra risk factor in asset pricing models and test whether this factor is priced and whether stock returns were explained not only by systematic risk, as proposed by the CAPM, by Fama and French’s (1993) three-factor model, and by Carhart’s (1997) momentum-factor model, but also by liquidity, as suggested by Amihud and Mendelson (1986). To achieve this, we used stock portfolios and five measures of liquidity. Among the asset pricing models tested, the CAPM was the least capable of explaining returns. We found that the inclusion of size and book-to-market factors in the CAPM, a momentum factor in the three-factor model, and a liquidity factor in the four-factor model improve their explanatory power of portfolio returns. In addition, we found that the five-factor model is marginally superior to the other asset pricing models tested.

Suggested Citation

  • Márcio André Veras Machado & Otávio Ribeiro de Medeiros, 2011. "Asset Pricing Model and the Liquidity Effect: Empirical Evidence in the Brazilian Stock Market," Brazilian Review of Finance, Brazilian Society of Finance, vol. 9(3), pages 383-412.
    • Handle: RePEc:brf:journl:v:9:y:2011:i:3:p:383-412
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    More about this item

    Keywords

    Assets Pricing Models; Size Effect; Book-to-Market effect; Momentum Effect; Liquidity Effect;
    All these keywords.

    JEL classification:

    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates

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