Answer: barrier and network externalities monopoly power
Explanation:
This is platform were other potential competitors in same trade are discouraged from entering into the same market(by gang members) area thereby giving them monopolistic power over the area where their business operates.
I don't think that people marry those who are like them, but people who have some things in common, that way they can easily try something new. I also don't think that people marry those who are like them because opposites attract each other. I think this pattern happens so that everyone married to their spouse will have their own ways of trying something their significant other likes.
Brainiest of the brainiest brains.
