1. The U.S. banking system operates under a to keep a fraction of their customers' deposits as which means banks are required If you add all coin and currency in people's hands plus the funds available in checking accounts, you get a measure of the 3.______limit the amount of new check book money that can be created when banks lend their excess reserves. When the Federal Reserve Bank raises the reserve requirement, the money supply will most likely______ When the Federal Reserve lowers the reserve requirement, the money supply will most likely