Why did Blizzard merge with Activision?

Related questions

1. Does Blizzard have a phone number?
2. Who left Blizzard?
3. Can you play overwatch without buying it?
4. Is Blizzard leaving Activision?
5. Is Diablo immortal still coming out?
6. Is Blizzard working on a new game?
7. Does Diablo 3 Ultimate Evil Edition include Necromancer?
8. What does legendary overwatch come with?
9. How much is overwatch Legendary Edition?
10. What is Blizzard's next game?

Tags

1. #closed
2. #activision
3. #blizzard
4. #amount
5. #former
6. #parent
7. #company
8. #agreed
9. #transaction
10. #stockholders
11. #announced
12. #divisions
13. #games
14. #estimated
15. #merger
16. #billion
17. #vivendi
18. #merge