The Cost Minimizing Input Choice
- R = depreciation rate + interest rate
* The Isocost Line
- C = wL + rK
- Isocost: A line which shows all the combinations of L & K which can be purchased for same cost
- Rewriting C as linear:
is the ratio of wage rate to rental cost of capital.
* This shows the rate at which capital can be substituted for labor with no change in cost.