Paola Subacchi is Professor of International Economics at the University of London's Queen Mary Global Policy Institute and the author, most recently, of "The Cost of Free Money."
Greater global acceptance of currency means mainland centers like Shanghai can step up

Hong Kong's intrinsic feature of bridging two systems served it well, but this is no longer the case. © Reuters
Paola Subacchi is Professor of International Economics at the University of London's Queen Mary Global Policy Institute and the author, most recently, of "The Cost of Free Money."