When the larger scale media companies buy out the more smaller-scaled or local companies they become more powerful within the market.
Media integrity is especially endangered in the case when there are clientelist relations between the owners of the media and political centres of power.
Such a situation enables excessive instrumentalisation of the media for particular political interests, which is subverting democratic role of the media.
Net neutrality is also at stake when media mergers occur.
Concentration of media ownership (also known as media consolidation or media convergence) is a process whereby progressively fewer individuals or organizations control increasing shares of the mass media.
Globally, large media conglomerates include Viacom, CBS Corporation, Time Warner, 21st Century Fox and News Corp (the former News Corporation, split in 2013), Bertelsmann, Sony, Comcast, Vivendi, Televisa, The Walt Disney Company, Hearst Corporation, Organizações Globo and Lagardère Group.
In nations described as authoritarian by most international think-tanks and NGOs, media ownership is generally something very close to the complete state control over information in direct or indirect ways.
Media mergers are a result of one media related company buying another company for control of their resources in order to increase revenues and viewership.
As information and entertainment become a major part of our culture, media companies have been creating ways to become more efficient in reaching viewers and turning a profit.
Successful media companies usually buy out other companies to make them more powerful, profitable, and able to reach a larger viewing audience.
Media mergers have become more prevalent in recent years, which has people wondering about the negative effects that could be caused by media ownership becoming more concentrated.
Such negative effects that could come into play are lack of competition and diversity as well as biased political views.