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 torise 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 to explain why, in the real world, the fed cannot precisely control the money supply? check all that apply. the fed cannot control the amount of money that households choose to hold as currency. the fed cannot prevent banks from lending out required reserves. the fed cannot control whether and to what extent banks hold excess reserves.