Answer the next question on the basis of the following consolidated balance sheet of the commercial banking system. assume that the reserve requirement is 10%. all figures are in billions. assets (billions of dollars) liabilities & net worth (billions of dollars) reserves $60 checkable deposits $600 securities 140 stock shares 260 loans 260 property 400 suppose the fed wants to increase the money supply by $400 billion to drive down interest rates and stimulate the economy. assuming that the money multiplier is operating to full effect, to accomplish the desired increase, the fed could