european comics: Well there's these two guys who have been friends for 20 years, one of them writes the scripts and the other makes the art.
american comics: The publisher wants us to crank out a new chapter every month so we have one dude who writes it, another one plans the page layout and sketches, a third person inks the page and fourth one colours it, and the fifth one is on the payroll just to fight the publisher about the requested edits and corrections.
japanese comics: The publisher wants us to crank out a new chapter every month so we have just this one dude doing the whole damn thing on his own in a tiny apartment while slowly going insane.