Consumption expenditure (trillions of 2009 dollars) 25 45 line 20 15 Consumption function 10 5 0 10 15 20 Disposable income (trillions of 2009 dollars) In the figure above, when disposable income equals $10 trillion, consumption expenditure is less than disposable income, so consumers are saving. O consumption expenditure is greater than disposable income, so consumers are dissaving. O consumption expenditure is greater than disposable income but it is not possible to determine if consumers are saving or dissaving. O consumption expenditure is less than disposable income, so consumers are dissaving. O consumption expenditure is greater than disposable income, so consumers are saving