Re-formulating the test for ascertaining the proper law of an arbitration agreement: a comparative common law analysis

Following two recent decisions from the apex courts in England and Singapore on the appropriate methodology to ascertain the proper law of an arbitration agreement, the positions in these two leading arbitration destinations have now converged in some respects. But other issues of conceptual and practical significance have not been fully addressed, including the extent to which the true nature of the inquiry into whether the parties had made a choice of law is in substance an exercise in contractual interpretation, the applicability of a validation principle, and the extent to which the choice of a neutral seat may affect the court’s determination of the proper law of the arbitration agreement. We propose a re-formulation of the common law’s traditional three-stage test for determining the proper law of an arbitration agreement that can be applied by courts and tribunals alike.