Nowadays,
it's not unusual anymore that people are willing to move
 to the other side of the globe for a job if it's what they want or
 need. 
 You make it sound as if all that's involved is a plane flight and
 shipping your personal belongings.  It's not anywhere nearly as
 simplistic as that, and hasn't been that way for a long, long time. 
 
It varies greatly.
  When I got out of college in 1986, I worked 5 months
in France.  I
 had to go through a huge amount of bullshit just to do that
 short-term work as an employee.  I can't even begin to imagine how
 much bullshit you have to go through now. 
My experience on the subject is a decade old, but when I worked in
Norway (at Universitetet i Troms?) for six months - the second half of
2002 - I had to do remarkably little bullshit hoop-jumping.  There are,
of course, many possible reasons my experience differs from yours, but
I have no basis for more than wild speculation which one(s) are
actually behind it.
I suspect the individual variation from case to case is large enough
that few generalizations on the subject are valid.
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