| Hello tony:
Homework???? My answer ain't gonna get you a good grade.
I can tell you that interest rate is the cost of money. When money is in short supply, it costs more. When there's a lot of it around, it costs less.
Now, I'm not familiar with fancy words like "investment spending aggregate" or real GDP. All I know is when you increase the money supply without a corresponding increases in goods and services, prices go up.
excon |