Asian economies should be focusing on their growth and not on territorial disputes, a leading Singapore-based analyst said.

Simon Tay, chairman of think-tank Singapore Institute of International Affairs, said the geopolitics of the region are changing, with China gaining more influence over the Asia-Pacific region and Prime Minister Shinzo Abe's suite of economic measures, known as "Abenomics," leading toward a stronger Japanese economy.

In a recent interview, Tay said the "present American dominance in our region cannot remain because China, India and others will also come up," noting Asia's growing economies will play a bigger role in the international community.