The agency that controls the money supply in the United States is the Federal Reserve System. This agency controls the amount of money in quantity in the U.S economy through fluctuating interest rates to enhance a stable economy and financial system. The job of the Federal system reserve entails controlling monetary policies by stabilizing prices and ensure that the long-term interest rates are moderate. Also, the system has to maintain the financial systems and markets of the state thus providing people and entities with opportunities and the means to invest. Also, the Federal Reserve System function is to regulate financial institutions and the activities they undertake to ensure that the publics’ confidence in the banking systems is enforced. Another job that the Federal Reserve of the United States of America does is enhancing consumer protection as well as the development of the society (United States of America, Federal Reserve System and Board of governors, 2013). The system ensures that financial institutions such as banks act in the best interest of the public through various Acts such as the Truth Lending Act and the Mortgage Disclosure Act.