Disposable income 0 100 200 300 400 Consumption 75 150 225 300 375 Real GDP Aggregate Expenditure 6000 6200 7000 7000 8000 7800 9000 8600 Real GDP C I G X M 2000 1460 200 300 200 80 2100 1530 200 300 200 90 2200 1600 200 300 200 100 2300 1670 200 300 200 110