Consider two nations, Spendia and Savia. The MPC for Spendia is 0.8, and the MPC for Savia is 0.5. Assume that both nations experience an increase in gross investment (1) of $150 million at their existing GDP levels. Instructions: In parta, enter your answers for changes in income as a whole number and multiplier answers to 2 decimal places. In part b.round your answers to 2 decimal places. a. Considering the multiplier effect, what will be the overall increase in income (Y) for each nation? The increase in income for Spendia is $ 100 million, describing an expenditures multiplier of 5 The increase in income for Savia is $ 100 million, describing an expenditures multiplier of 2. b. Now assume that a third nation experiences an increase of $375 million in its income and its gross Investment (1) increases by the same amount as Spendia and Savia, which is $150 million The expenditures multiplier of this third nation is 2 suggesting an MPC of 0.45 7