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Largest global M&A transactions 2020

According to data provided by the Institute for Mergers, Acquisitions and Alliances (IMAA), the acquisition of Mannesmann AG by Vodafone Air Touch PLC in 1999 was the largest merger and acquisition (M&A) deal since January 1985, with transaction value amounting to 202.8 billion U.S. dollars. It is also one of the oldest transactions on the list.

What affects M&A?

Theorists focus on economies of scale and scope, or the idea that a larger company is often more efficient in size or spectrum. Executives that work in the industry are more direct, pointing to technology acquisition or expanding the customer base as strategic drivers of M&A activity. Since there is a risk in any major organizational change, the business cycle also affects the total value of mergers and acquisitions as well.

Other aspects of M&A

Financial institutions play a critical role in the M&A process. These advisors are necessary to navigate the complicated regulatory environment, and they can be well rewarded. The leading financial advisors manage deals worth billions of U.S. dollars. Certain industries are also more prone to mergers, such as the financial and technological industries.

Largest merger and acquisition transactions worldwide as of January 2020

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Release date

February 2020



Survey time period

January 1, 1985 to January 31, 2020

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Statistics on "Mergers and acquisitions (M&A) in Europe"

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