That's what I've read, too, i.e. intent to settle, or not.
Maybe wanting to move forever (i.e. migrant) is more common, if one is from a poorer country, which could explain why some others here thought that "immigrant" implied "poor and less educated".
Maybe wanting to move forever (i.e. migrant) is more common, if one is from a poorer country, which could explain why some others here thought that "immigrant" implied "poor and less educated".