Keynesian Cross Equilibrium. First the ad blue curve is positive. The keynesian cross and solving for equilibrium also known as the 45 degree line jeff keynesian macroeconomics sometimes you can be asked to find the equilibrium value from the keynesian cross or the 45 degree line.
The ad curve is assumed to be positive because an increase in national output should lead to an increase in disposable income and thus an increase in consumption which makes up a portion of aggregate demand. Equilibrium in a keynesian cross diagram can happen at potential gdp or below or above that level. The keynesian cross and solving for equilibrium also known as the 45 degree line jeff keynesian macroeconomics sometimes you can be asked to find the equilibrium value from the keynesian cross or the 45 degree line.
We begin with a plot of the aggregate demand function with respect to real gnp y in the adjoining diagram.
The ad curve is assumed to be positive because an increase in national output should lead to an increase in disposable income and thus an increase in consumption which makes up a portion of aggregate demand. The keynesian cross is a diagrammatic representation showing the equilibrium level of the real gross domestic product gdp where aggregate or total expenditures is equivalent to the quantity of. The keynesian cross diagram the keynesian cross diagram depicts the equilibrium level of national income in the g s market model. In the expenditure output or keynesian cross model the equilibrium occurs where the aggregate expenditure line ae line crosses the 45 degree line.
