Spending Round by Round Complete the following questions. 1. Assume the MPC is 0.75. What is the value of the multiplier? What is the MPS? What would need to happen to make the multiplier larger? 2. Assume investment spending increases by $20 billion and the MPC is 0.75. Calculate the first through the fourth rounds of spending in the economy. 3. Assume investment spending increases by $20 billion and the MPC is 0.75. Calculate the total change in GDP arising from this increase in investment spending