30 years on, Hong Kong's dollar peg is still a star performer

John Tsang says given the important role that the linked exchange rate system has played - and continues to play - in Hong Kong's rise to international economic and financial prominence, there is no reason to change it. John Greenwood agrees, noting the lack of an alternative: a flexible rate system won't protect the economy from volatility, while the renminbi is far from ready as an international currency