Declining consumer confidence decreases consumption expenditure and decreases aggregate expenditure and aggregate demand. In Fig. 27.8a, the aggregate expenditure curve shifts from AEa to AEV In Figure 27.8b, the aggregate demand curve shifts from ADQ to AD^ and the price level falls, from 126 to 122. The fall in the price level increases aggregate planned expenditure, which shifts the aggregate expenditure curve shifts upward from AE1 to AEr Real GDP decreases, from $1,200 billion to $1,140 bil...