4. Consider how the cases below would change the equilibrium in the money market (only the market money model, not combined with the FX market, so that the real money is on the horizontal axis, not on the vertical axis.) 4.a. Central bank increased nominal money supply. Choose correct words below. \"The increase would shift the real money (demand I supply) curve to the (left I right). The shift would (lower I raise) the equilibrium interest rate.\" 4.b. Real income Y fell. Choose correct words below. \"The fall would shift the real money (demand I supply) curve to the (left I right). The shift would (lower I raise) the equilibrium interest rate.\