English, Article, Journal or magazine article edition: Ex-dividend pricing, taxes and arbitrage opportunities: the case of the Portuguese stock exchange Jorge Farinha; Miguel Sôro

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Bookmark: http://trove.nla.gov.au/version/182253
Physical Description
  • preprint
Language
  • English

Edition details

Title
  • Ex-dividend pricing, taxes and arbitrage opportunities: the case of the Portuguese stock exchange
Author
  • Jorge Farinha
  • Miguel Sôro
Physical Description
  • preprint
Notes
  • This paper examines the ex-dividend stock price behaviour in the Portuguese Stock Exchange between 1993 and 2002, a unique period characterized by a richness of different investor tax statuses and several tax changes. After classifying investors according to their tax profile and corresponding dividend tax discrimination factorss, we find that the pursuit of a short-term trading strategy around the ex-dividend day does not yield significant abnormal returns after tax and bid-ask costs. These results are in accordance with the inexistence of arbitrage opportunities even when extreme tax situations are considered under different dividend yield scenarios. It is also shown that the observed ex-dividend price reduction is consistent with a tax explanation and in disagreement with market microstructure arguments. Further tests indicate that the price change is not significantly different from the expected theoretical price reduction for a marginal investor which we identified most likely as a long-term shareholder in high-tax brackets. Finally, our results only provide a weak support for the clientele hypothesis.
  • ex-dividend pricing, arbitrage, taxes, international financial markets, market efficiency
  • RePEc:por:cetedp:0508
Language
  • English
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