Central banking is a highly secretive system of managing a country's finances and money supply. This system has been kept secret for a number of reasons, including the need to protect the financial system from external influence and manipulation, the importance of maintaining public confidence and preventing panic, and the need to maintain the stability of the currency. Central banks also have an important role in setting economic policy, and this too is kept secret to prevent any potential manipulation and to maintain the central bank's independence. Finally, central banking is also kept secret to limit the public's access to information about the economy and the markets.