Six great powers [the US, China, India, Russia , Japan and the EU] will constitute either a central balance of power, or with luck and good management, a concert of powers. However, the overall redistribution of power extends for beyond that grouping, to middle powers like Australia and even minor powers. The new prominence of the G20 is an early sign of this tendency, and the two global issues of the moment {the economic crisis and climate change] both tend to encourage concert rather than balance as the most viable pattern.
The full paper can be found here.
Dr Coral Bell AO is Visiting Fellow, Strategic and Defence Studies Centre, at the Australian National University.