The deal had been announced in January 2022 and the FTC sued to stop it in December last year.
Judge Jacqueline Scott Corley in San Francisco pressed FTC lawyers on where their economist got the data to show the deal would harm consumers.
The FTC has said that if Microsoft bought Activision, Microsoft would have the incentive and the ability to harm competition in markets related to consoles, subscription game services and cloud gaming.
"The harm here is we think is substantial in locking up Activision content," said FTC lawyer James Weingarten.
To address the FTC concerns, Microsoft has agreed to license "Call of Duty" to rivals.
Persons:
Microsoft Corporation Satya Nadella, Read, Microsoft's, Jacqueline Scott Corley, James Weingarten, Corley, Microsoft's Beth Wilkinson, it's, Satya Nadella, Nadella, Biden, Diane Bartz, Lincoln
Organizations:
Microsoft Corporation, . Federal Trade Commission, Microsoft, Activision Blizzard, U.S . Federal Trade, Activision, Federal Trade Commission, Nintendo, Sony Group, FTC, PlayStation, Thomson
Locations:
California, Downtown San Francisco , California, U.S, WASHINGTON, San Francisco, British, Canada