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The efficiency and the stability of efficiency rankings of Vietnamese commercial banks through mergers and acquisitions from 2008 to 2018

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  • Phung Mai Lan
  • Nguyen Khac Minh
  • Pham Van Khanh
  • Nguyen Thien Luan

Abstract

This study applied DEA window analysis in combination with non-parametric testing to evaluate the efficiency of the Vietnamese commercial banks pre-and post-mergers and acquisitions (M&A) as well as to test the stability of the banking efficiency during M&A period. The results showed that the average technical efficiency calculated from the window analysis model ranged from 81% to 99%. Many banks carrying out M&As have grown in all aspects such as increasing in scale, improving technology capabilities and success management. However, there were also some banks that showed weakness through M&As. The reasons for the inefficiency of those banks were mainly the excess of customer deposits in balance sheet of the banks and their bad debts.

Suggested Citation

  • Phung Mai Lan & Nguyen Khac Minh & Pham Van Khanh & Nguyen Thien Luan, 2024. "The efficiency and the stability of efficiency rankings of Vietnamese commercial banks through mergers and acquisitions from 2008 to 2018," Afro-Asian Journal of Finance and Accounting, Inderscience Enterprises Ltd, vol. 14(4), pages 581-604.
    • Handle: RePEc:ids:afasfa:v:14:y:2024:i:4:p:581-604
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