<Tr> <Td> </Td> <Td> This article's lead section does not adequately summarize key points of its contents . Please consider expanding the lead to provide an accessible overview of all important aspects of the article . Please discuss this issue on the article's talk page . (September 2010) </Td> </Tr> <P> Monetary policy concerns the actions of a central bank or other regulatory authorities that determine the size and rate of growth of the money supply . </P> <P> In the United States, the Federal Reserve is in charge of monetary policy, and implements it primarily by performing operations that influence short - term interest rates . </P> <P> The money supply has different components, generally broken down into "narrow" and "broad" money, reflecting the different degrees of liquidity (' spendability') of each different type, as broader forms of money can be converted into narrow forms of money (or may be readily accepted as money by others, such as personal checks). </P>

Who is responsible for the monetary policy in the united states