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The effect of merger and acquisition announcement on Greek bank stock returns

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Author Info

  • Panayiotis P. Athanasoglou

    ()
    (Bank of Greece)

  • Ioannis G. Asimakopoulos

    ()
    (Bank of Greece)

  • Evangelia A. Georgiou

    ()
    (Bank of Greece)

Abstract

This study examines the response of Greek bank stock prices to the announcement of intended mergers and acquisitions (M&As) during the period 1998-1999, applying a standard event study methodology. The results show that both the acquiring banks and, albeit to a lesser extent, the target banks experience significant positive abnormal stock returns that last for a few days around the announcement date. These returns are more evident in the period before the announcement thus indicating either that rumours circulate or that inside information is being abused. The efficient market hypothesis in its semi-strong form seems to be violated for the period under examination, as abnormal returns remain evident for several days after the announcement date.

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File URL: http://www.bankofgreece.gr/BogEkdoseis/econbull200501.pdf
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Bibliographic Info

Article provided by Bank of Greece, Economic Research Department in its journal Economic Bulletin.

Volume (Year): (2005)
Issue (Month): 24 (January)
Pages: 27-44

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Handle: RePEc:bog:econbl:y:2005:i:24:p:27-44

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Web page: http://www.bankofgreece.gr
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Related research

Keywords: Mergers and acquisitions; event study analysis; abnormal returns;

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References

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  1. Dimitrios Sideris, 2004. "Testing for Long-Run PPP in a System Context: Evidence for the US, Germany and Japan," Working Papers 19, Bank of Greece.
  2. van Praag, Bernard M. S., 1991. "Ordinal and cardinal utility : An integration of the two dimensions of the welfare concept," Journal of Econometrics, Elsevier, vol. 50(1-2), pages 69-89, October.
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Citations

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Cited by:
  1. Zacharias Bragoudakis & Stelios Panagiotou, 2010. "Determinants of the receipts from shipping services: the case of Greece," Economic Bulletin, Bank of Greece, Economic Research Department, issue 34, pages 41-55, September.
  2. Heather Gibson & hiona Balfousia, 2010. "The impact of nominal and real uncertainty on macroeconomic aggregates in Greece," Economic Bulletin, Bank of Greece, Economic Research Department, issue 34, pages 57-71, September.
  3. Zacharias Bragoudakis & Dimitrios Sideris, 2012. "Do retail gasoline prices adjust symmetrically to crude oil price changes? the case of the Greek oil market," Economic Bulletin, Bank of Greece, Economic Research Department, issue 37, pages 7-21, December.
  4. Theodoros Mitrakos & Panos Tsaklogou & Ioannis Cholezas, 2010. "Determinants of the wage rates in Greece with an emphasis on the wages of tertiary education graduates," Economic Bulletin, Bank of Greece, Economic Research Department, issue 34, pages 7-40, September.
  5. Costas N. Kanellopoulos, 2012. "Employment and worker flows during the financial crisis," Economic Bulletin, Bank of Greece, Economic Research Department, issue 36, pages 31-41, April.
  6. Theodore Mitrakos & Panos Tsakloglou & Ioannis Cholezas, 2010. "Determining factors of youth unemployment in Greece with emphasis on tertiary education graduates," Economic Bulletin, Bank of Greece, Economic Research Department, issue 33, pages 21-62, May.
  7. Theodoros M. Mitrakos & George T. Simigiannis, 2009. "The determinants of Greek household indebtedness and financial stress," Economic Bulletin, Bank of Greece, Economic Research Department, issue 32, pages 7-26, May.
  8. Christos Papazoglou, 2009. "Is Greece's export performance really low?," Economic Bulletin, Bank of Greece, Economic Research Department, issue 32, pages 27-37, May.
  9. Petros M Migiakis, 2010. "Determinants of the Greek stock-bond correlation," Economic Bulletin, Bank of Greece, Economic Research Department, issue 33, pages 79-90, May.
  10. Costas N. Kanellopoulos, 2012. "The Size and structure of uninsured employment," Economic Bulletin, Bank of Greece, Economic Research Department, issue 37, pages 23-41, December.
  11. Hiona Balfoussia & Heather Gibson, 2010. "Inflation and Nominal Uncertainty: the case of Greece," Economic Bulletin, Bank of Greece, Economic Research Department, issue 33, pages 63-78, May.
  12. Petros M. Migiakis, 2012. "Reviewing the proposals for common bond issuances by the euro-area sovereign under a long-term perspective," Economic Bulletin, Bank of Greece, Economic Research Department, issue 37, pages 43-54, December.
  13. Papaspyrou Theodoros, 2012. "EMU sustainability and the prospects of peripheral economies," Economic Bulletin, Bank of Greece, Economic Research Department, issue 36, pages 7-29, April.
  14. Nikos G. Zonzilos & Zacharias G. Bragoudakis & Georgia I. Pavlou, 2009. "An analysis of the reliability of first (flash) quarterly national account data releases for Greece," Economic Bulletin, Bank of Greece, Economic Research Department, issue 32, pages 39-51, May.
  15. Faidon Kalfaoglou, 2012. "Bank capital adequacy framework," Economic Bulletin, Bank of Greece, Economic Research Department, issue 36, pages 43-81, April.
  16. Vassilis Th. Rapanoss & Georgia Kaplanoglou, 2010. "Independent Fiscal Councils and Their Possible Role in Greece," Economic Bulletin, Bank of Greece, Economic Research Department, issue 33, pages 7-20, May.

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