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Abnormal Returns in Privatization Public Offerings: The case of Portuguese firms

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Author Info
Carla Vieira (Faculty of Economics, University of Oporto)
Ana Paula Serra (Faculty of Economics, University of Oporto)
Abstract

This paper provides evidence on abnormal returns of Portuguese privatization public offerings for the period from 1989 to 2001. This study explores the abnormal performance of a comprehensive sample of Portuguese privatization transactions and investigates the determinants of the observed price behavior. We find some evidence of the underpricing phenomenon for privatized offerings but initial returns are low and barely significant. The results show further that privatization IPOs underperform private sector IPOs. In the long run, we observe negative abnormal returns. While in early event months, privatization public offerings yield more negative returns than private sector offerings, this effect is reversed in longer horizon periods. Initial underpricing is thus partially reversed and investors seem to require higher returns in partial privatizations.

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Article provided by Faculdade de Economia, Universidade de Coimbra in its journal Notas Económicas.

Volume (Year): (2006)
Issue (Month): 23 (June)
Pages: 6-34
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Handle: RePEc:gmf:journl:y:2006:i:23:p:6-34

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Find related papers by JEL classification:
G38 - Financial Economics - - Corporate Finance and Governance - - - Government Policy and Regulation
G32 - Financial Economics - - Corporate Finance and Governance - - - Financing Policy; Capital and Ownership Structure

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  1. Baron, David P, 1982. " A Model of the Demand for Investment Banking Advising and Distribution Services for New Issues," Journal of Finance, American Finance Association, vol. 37(4), pages 955-76, September. [Downloadable!] (restricted)
  2. Bruno Biais & Enrico Perotti, 2002. "Machiavellian Privatization," American Economic Review, American Economic Association, vol. 92(1), pages 240-258, March. [Downloadable!]
  3. Perotti, Enrico C, 1995. "Credible Privatization," American Economic Review, American Economic Association, vol. 85(4), pages 847-59, September. [Downloadable!] (restricted)
  4. Perotti, Enrico C. & van Oijen, Pieter, 2001. "Privatization, political risk and stock market development in emerging economies," Journal of International Money and Finance, Elsevier, vol. 20(1), pages 43-69, February. [Downloadable!] (restricted)
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  5. Boardman, Anthony E & Laurin, Claude, 2000. "Factors Affecting the Stock Price Performance of Share Issued Privatizations," Applied Economics, Taylor and Francis Journals, vol. 32(11), pages 1451-64, September. [Downloadable!] (restricted)
  6. Ritter, Jay R, 1991. " The Long-run Performance of Initial Public Offerings," Journal of Finance, American Finance Association, vol. 46(1), pages 3-27, March. [Downloadable!] (restricted)
  7. Bulent Aybar, C., 2002. "The long-term performance of privatization-related ADR issues," Emerging Markets Review, Elsevier, vol. 3(2), pages 135-164, June. [Downloadable!] (restricted)
  8. William L. Megginson & Robert C. Nash & Jeffry Netter & Adam L. Schwartz, 2000. "The Long-Run Return to Investors in Share Issue Privatizations," Financial Management, Financial Management Association, vol. 29(1), Spring.
  9. Jones, Steven L. & Megginson, William L. & Nash, Robert C. & Netter, Jeffry M., 1999. "Share issue privatizations as financial means to political and economic ends," Journal of Financial Economics, Elsevier, vol. 53(2), pages 217-253, August. [Downloadable!] (restricted)
  10. William L. Megginson & Jeffry M. Netter, 2001. "From State to Market: A Survey of Empirical Studies on Privatization," Journal of Economic Literature, American Economic Association, vol. 39(2), pages 321-389, June. [Downloadable!] (restricted)
  11. Barber, Brad M. & Lyon, John D., 1997. "Detecting long-run abnormal stock returns: The empirical power and specification of test statistics," Journal of Financial Economics, Elsevier, vol. 43(3), pages 341-372, March. [Downloadable!] (restricted)
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