2. Suppose the MPC in the economy in Figure 10.2 equals 0.5…

2. Suppose the MPC in the economy in Figure 10.2 equals 0.5 and the shift from AD0 to AD1 was caused by a decrease in consumption of $12 billion. What will the total decrease in aggregate demand be (for example, AD0 to AD2) as a result of the initial $12 billion decrease?