The borders are omnipresent within the greater region. The differences (in the areas of economics, social matters, tax matters, real estate, etc.) that they create are frequent reasons for mobility. Since an increase of moves from Luxembourg to the border regions (Saarland, Rhineland-Palatinate, Lorraine or Wallonia) has been observed recently, this work tries to determine the most important reasons and consequences of this phenomenon with its many facets.
