4.8.Artikel 4 van het Verdrag is gebaseerd op het OESO-modelverdrag van 1977.In dit verband kan het OESO-commentaar bij het modelverdrag van 1977 duidelijkheid bieden over de begrippen ‘duurzaam tehuis’ en ‘middelpunt van levensbelangen’ Over deze begrippen is in de onderdelen 12, 13 en 15 opgemerkt:
“12. Sub-paragraph a) means, therefore, that in the application of the Convention (that is, where there is a conflict between the laws of the two States) it is considered that the residence is that place where the individual owns or possesses a home; this home must be permanent, that is to say, the individual must have arranged and retained it for his permanent use as opposed to staying at a particular place under such conditions that it is evident that the stay is intended to be of short duration.
13. As regards the concept of home, it should be observed that any form of home may be taken into account (house of apartment belonging to or rented by the individual, rented furnished room). But the permanence of the home is essential; this means that the individual has arranged to have the dwelling available to him at all times continuously, and not occasionally for the purpose of a stay which, owing to the reasons for it, is necessarily of short duration (travel for pleasure, business travel, educational travel, attending a course at a school, etc.).
(…)
15. If the individual has a permanent home in both Contracting States, it is necessary to look at the facts in order to ascertain with which of the two States his personal and economic relations are closer. Thus, regard will be had to his family and social relations, his occupations, his political, cultural or other activities, his place of business, the place from which he administers his property, etc. The circumstances must be examined as a whole, but it is nevertheless obvious that considerations based on the personal acts of the individual must receive special attention. If a person who has a home in one State sets up a second in the other State while retaining the first, the fact that he retains the first in the environment where he has always lived, where he has worked, and where he has his family and possessions, can, together with other elements, go to demonstrate that he has retained his centre of vital interests in the first State.”