In the world, there are many regions. If we analyse them, we can realize that there are many quite big differences between them: there are richer and poorer systems; the living cost is different; the opportunities are not the same; in some of them, the use of public medicine is free; and many other really important features. So, obviously, is normal that skilled folk would like to move from poor land to richer places. In the following text, we are going to evaluate whether it is good that skilled people go to better places or not.