Final answer:
In a closed Keynesian economy with specific equations for consumption, investment, and government spending, the level of saving can be calculated using the equation S = Y - C - G.
Step-by-step explanation:
This closed Keynesian Economy can be represented by the following equations:
- C = 500 + 0.75Y
- I = 300
- G = 400
To find the level of saving, we can use the equation:
Substituting the given values, we get:
- S = Y - (500 + 0.75Y) - 400
- S = 0.25Y - 900
Therefore, the level of saving is 0.25Y - 900.