In: Economics
If the current stock of capital per worker is k = 50, the depreciation rate is d = 0.1 and population grows at rate n = 0.02. How much investment do you need to make sure future capital per worker stays at the current level?
ANS)Given
capital per worker is k = 50
depreciation rate is d = 0.1
population grows at rate n = 0.02
Investment require to cover up depriciation = dk
= 0.1 x 50
= 5
Investment require to provide capital to new population( worker)= nk
= 0.02 x 50
= 1
so, the investmen require to make sure future capital per worker stays at the current level = dk +nk
= 5 + 1
= 6