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Khan Academy
Khan Academy: Is Lm Model: Investment and Real Interest Rates
Discusses why high real interest rates lead to low investment, and why low rates lead to high investment.
Khan Academy
Khan Academy: Is Lm Model: Loanable Funds Interpretation of Is Curve
A discussion of how real GDP can drive real interest rates.
Khan Academy
Khan Academy: Connecting the Keynesian Cross to the Is Curve
This video is an introduction to the investment/savings curve. [9:57]