Due to diversity in parties to (e.g., states, international organizations, corporations and indivduals) and subjects of (e.g., state responsibility, investment, commercial transaction, violation of the international commercial contract) international arbitration, it would seem cogent to argue that international arbitration is comprised of many types.
Basaran, Halil Rahman
"Is International Arbitration Universal?,"
ILSA Journal of International & Comparative Law: Vol. 21
, Article 2.
Available at: http://nsuworks.nova.edu/ilsajournal/vol21/iss3/2