You should compare and contrast the United States Dollar, The Euro, and the Chinese Renminbi. Specifically; You should discuss how the monetary authorities in each of these systems reacted to the global financial crisis. You should consider the role of central banks, and the use of monetary policy and fiscal policy in managing a single currency, with reference to the Euro area in particular. Your discussion should consider actions taken to support the banking system, and manage sovereign debt problems. You should make reference to the conditions required for successful operation of a single currency covering many states.