The study dwells on the problem of interaction between North American legal doctrine and codifications of private international law in the state of Louisiana and the Province of Quebec. Covering both classical and modern USA schools of thought in the area of conflict of laws, the article also includes a comparative analysis of Book IV (Conflict of Laws) of Louisiana Civil Code and Book X (On private international law) of Quebec Civil Code respectfully. On comparing these acts, the authors dwell on a thesis that, in spite of the obvious similarities between respectful legal systems, one cannot state undoubtedly that American doctrine of private international law has been recepted by abovementioned codifications in equal measure. Therefore, despite all the similarities, the doctrinal traditions on which they are respectfully based are actually different.
The article contains specifics of customary law as legal source in common law countries. In these countries customary law is not only historical legal source, but also contemporary one. Constitutional conventions fulfill a special function in modern law. However, legal doctrine evaluates legal nature of constitutional conventions unequally.
This article reviews the jurisprudence in Germany, namely its concept, its origins, its main features and its importance for development of private law before the German Civil Code of 1896 came into force.