On a diagram, draw an economy’s aggregate production function. On the same diagram, add curves to illustrate where the production function would be in five years under each of the following assumptions. (Label your additional curves a, b, and c, and assume nothing else affecting economic growth changes.)

a. Planned investment remains constant at its current level, which exceeds depreciation.
b. Planned investment remains constant at its current level, which is less than depreciation.

c. Planned investment rises above its current level, which exceeds depreciation.