The user cost of capital will be 15 units.
Price of new fabricating machine= 60 units of output
Price of a one-year-old machine = 51 units of output
Marginal cost of fabricating machine = 165 - 2K
Real interest rate = 10%
We'll then calculate depreciation which will be:
= (60 - 51)/60 × 100
= 9/60 × 100
= 15%
Therefore, the cost of capital will be:
= (Interest rate + Depreciation) × Price
= (0.10 + 0.15) × 60
= 0.25 × 60
= 15
Therefore, the user cost of capital is 15 units
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