All choice-of-law cases pose essentially the same problem: several rules or sets of rules, also called legal systems purport to govern disputed issues or set of issues, also called legal relationship, at stake. Traditionally, continental private international law (P.I.L.) focuses on the legal relationship and connects it to the appropriate legal system by means of choice-of-law rules.
Lois de police and modern American theories have common grounds despite any mutual influence. Both theories attempt to solve the choice of law problem from a functional standpoint. Basically, a functional approach to choice-of-law process centers on the policies that underlie the competing rules through a two-step inquiry.
Guedj Thomas G., “The Theory of the Lois de Police, A Functional Trend in Continental Private International Law-A Comparative Analysis with Modern American Theories,” The American Journal of Comparative Law, Vol. 39, No. 4. (Autumn, 1991), pp. 661-697.
The study of private settlement of cross-border trade and investment disputes through international commercial arbitration or other mechanisms has been much neglected by scholars of international political economy and international institutions. This oversight is attributable in part to the traditional focus of international relations on intergovernmental international organizations and the lack of attention to private international institutional arrangements. A further reason for the oversight is that arbitration is resolutely private, making information exceedingly difficult to obtain. Two distinguished international arbitrators, Alan Redfern and Martin Hunter, recently observed that the study of the practice of international commercial arbitration is like peering into the dark. Few arbitral awards are published and even fewer procedural decisions of arbitral tribunals come to light.
Private Justice in a Global Economy: From Litigation to Arbitration
Walter Mattli, International Organization, Vol. 55, No. 4, The Rational Design of International Institutions. (Autumn, 2001), pp. 919-947.