If Policy coordination and the 1world economy) Consider an open economy characterized by the equations below: 0210+0.8(Y_T) I210 G210 T210 IM:0.3Y X2031" a. Solve for the equilibrium output in the domestic economy giyenY; What is the multiplier in this economy? If we were to close theeconomy so exports and imports were identically equal to zero, what would th multiplier be? Why would the multiplier be different in a closed economy