Question

Suppose an economy starts the year with $100 million in capital, and during the course of a year, it adds $20 million of gross investment. Economists estimate that the depreciation rate for this economy is 9% per year.

Required:
a. Calculate depreciation and net investment for this economy.
b. Calculate the value of net exports.

Answer 1

Correct word for question b. "Now calculate the amount of next year's beginning capital stock for this economy"

a. Begins the year with $100 million in capital. Depreciation rate is 9% per year

Depreciation = 9% * $100 million

Depreciation = 0.09 * $100 million\

Depreciation = $9 million

Gross investment = $20 million

Net investment = Gross investment - Depreciation

Net investment = $20 million - $9 million

Net investment = $11 million

b. Next year begining capital stock = Capital stock at the begining of previous year + Net investment

Next year begining capital stock = $100 million + $11 million

Next year begining capital stock = $111 million