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Ex-Dividend Day Returns when Dividend and Capital Gains are Taxed at the Same Rate

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Abstract

Due to the overwhelming international evidence that stock prices drop by less than the dividend paid on ex-dividend days, the ex-dividend day anomaly is considered a stylized fact. Two main approaches have emerged to explain this empirical regularity: the tax-clientele hypothesis and the microstructure of financial markets. Although the most widely accepted explanation for this fact relies on taxes, the ex-dividend day anomaly has been reported even in countries where neither dividends nor capital gains are taxed. The 2006 tax reform in Spain established the same tax rate for dividends and capital gains. This paper investigates stock returns on ex-dividend days in the Spanish stock market after the 2006 tax reform using a random coefficient model. Contrary to previous research, we do not observe an ex-dividend day anomaly. Unlike previous investigations, which are mostly concerned with suggesting explanations as to why this anomaly has occurred, we are in the somewhat strange position of discussing why this anomaly has not occurred. Our findings are robust across companies and stock dividend yields, thus supporting a tax-based explanation for the ex-dividend day anomaly.

Suggested Citation

  • Josef García Blandón & M?nica Martínez Blasco & Josef Argiles Bosch, 2011. "Ex-Dividend Day Returns when Dividend and Capital Gains are Taxed at the Same Rate," Czech Journal of Economics and Finance (Finance a uver), Charles University Prague, Faculty of Social Sciences, vol. 61(2), pages 140-152, June.
  • Handle: RePEc:fau:fauart:v:61:y:2011:i:2:p:140-152
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    References listed on IDEAS

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    Cited by:

    1. Borja Amor-Tapia & Maria T. Tascon, 2016. "Separating Winners from Losers: Composite Indicators Based on Fundamentals in the European Context," Czech Journal of Economics and Finance (Finance a uver), Charles University Prague, Faculty of Social Sciences, vol. 66(1), pages 70-94, February.

    More about this item

    Keywords

    ex-dividend days; tax-clientele hypothesis; random coefficient model; tax neutrality;

    JEL classification:

    • G1 - Financial Economics - - General Financial Markets

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