suppose the federal reserve wants to increase the money supply by $200. maintain the assumption that banks do not hold excess reserves and that households do not hold currency. if the reserve requirement is 10%, the fed will use open-market operations to $ worth of u.s. government bonds. now, suppose that, rather than immediately lending out all excess reserves, banks begin holding some excess reserves due to uncertain economic conditions. specifically, banks increase the percentage of deposits held as reserves from 10% to 25%. this increase in the reserve ratio causes the money multiplier to to . under these conditions, the fed would need to $ worth of u.s. government bonds in order to increase the money supply by $200. which of the following statements help to explain why, in the real world, the fed cannot precisely control the money supply? c