Lequette, Yves Keywords: Private international law | Conflict of laws ABSTRACT This course is based on the fact that yesterday's world is that of the conflicting paradigm in private international law. This conflictual paradigm mainly involves the conflict of laws, although it can be challenged by the alteration of the conflict rule as well as by the acceptance of foreign decisions. This questioning is articulated on the notion of the next world, to which a second, more prospective part of this course is devoted. This next world, opening up to a new paradi…