Khan Academy
Khan Academy: Keynesian Cross: Keynesian Cross and the Multiplier
More explanation of shifting aggregate planned expenditures, and connecting this to the multiplier effect.
Khan Academy
Khan Academy: Keynesian Cross
A video [9:20] explaining the Keynesian Cross and how to use it while analyzing planned expenditures versus actual output.
Khan Academy
Khan Academy: Connecting the Keynesian Cross to the Is Curve
This video is an introduction to the investment/savings curve. [9:57]
Khan Academy
Khan Academy: Details on Shifting Aggregate Planned Expenditures
Sal Khan shows how a change in government spending can lead to a new equilibrium. [11:45]