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Testing the CAPM: Evidences from Italian Equity Markets

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  • Canegrati, Emanuele

Abstract

The aim of the following work is to exploit principal econometric tecniques to test the Capital Asset Pricing Model theory in Italian equity markets. CAPM is a financial model which describes expected returns of any assets (or asset portfolio) as a function of the expected return on the market portfolio. In this paper I will first explain the meaning of the market risk and I will measure it via the estimation of beta coeffcients, which are seen as a measure of assets sensitivity to market portfolio fluctuations. The theoretical framework is based on the Sharpe (1964) and Lintner (1965) version of the CAPM and on the Pettengill's hypothesis (1995) over the relationship between betas and returns. Secondly, I will test the presence of specific effects which usually occur in financial markets; in particular, I will check the presence of the well-known January effect and detect the existence of structural breaks over the considered period of time.

Suggested Citation

  • Canegrati, Emanuele, 2008. "Testing the CAPM: Evidences from Italian Equity Markets," MPRA Paper 10407, University Library of Munich, Germany.
    • Handle: RePEc:pra:mprapa:10407
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    File URL: https://mpra.ub.uni-muenchen.de/10407/1/MPRA_paper_10407.pdf
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    References listed on IDEAS

    as
    1. Chen, Ming-Hsiang, 2003. "Risk and return: CAPM and CCAPM," The Quarterly Review of Economics and Finance, Elsevier, vol. 43(2), pages 369-393.
    2. Gu, Anthony Yanxiang, 2003. "The declining January effect: evidences from the U.S. equity markets," The Quarterly Review of Economics and Finance, Elsevier, vol. 43(2), pages 395-404.
    3. William F. Sharpe, 1964. "Capital Asset Prices: A Theory Of Market Equilibrium Under Conditions Of Risk," Journal of Finance, American Finance Association, vol. 19(3), pages 425-442, September.
    4. Hodoshima, Jiro & Garza-Gomez, Xavier & Kunimura, Michio, 2000. "Cross-sectional regression analysis of return and beta in Japan," Journal of Economics and Business, Elsevier, vol. 52(6), pages 515-533.
    5. Elsas, Ralf & El-Shaer, Mahmoud & Theissen, Erik, 2003. "Beta and returns revisited: Evidence from the German stock market," Journal of International Financial Markets, Institutions and Money, Elsevier, vol. 13(1), pages 1-18, February.
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    Cited by:

    1. Khurshid Khudoykulov, 2016. "Verifying capital asset pricing model in Greek capital market," International Journal of Economics and Accounting, Inderscience Enterprises Ltd, vol. 7(1), pages 55-65.
    2. Širůček, Martin & Šoba, Oldřich & Němeček, Jaroslav, 2014. "Validita modelu CAPM na akciovém trhu USA [CAPM validity on the US stock market]," MPRA Paper 62820, University Library of Munich, Germany, revised 2014.

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    More about this item

    Keywords

    CAPM; Structural breaks; January effect;
    All these keywords.

    JEL classification:

    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading
    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions

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