Final answer:
The best production method is Method 1 due to its lowest total cost, both before and after the increase in labor costs.
Step-by-step explanation:
To determine the best production method, considering differing costs for labor and capital, we will calculate the total cost of each method. Initially, with labor costing $100/unit and capital at $400/unit, we have the following total costs:
- Method 1: (50 units of labor × $100/unit) + (10 units of capital × $400/unit) = $5,000 + $4,000 = $9,000
- Method 2: (20 units of labor × $100/unit) + (40 units of capital × $400/unit) = $2,000 + $16,000 = $18,000
- Method 3: (10 units of labor × $100/unit) + (70 units of capital × $400/unit) = $1,000 + $28,000 = $29,000
Method 1 offers the lowest total cost and would be the optimal choice. If labor costs increase to $200/unit, we re-calculate:
- Method 1: (50 units of labor × $200/unit) + (10 units of capital × $400/unit) = $10,000 + $4,000 = $14,000
- Method 2: (20 units of labor × $200/unit) + (40 units of capital × $400/unit) = $4,000 + $16,000 = $20,000
- Method 3: (10 units of labor × $200/unit) + (70 units of capital × $400/unit) = $2,000 + $28,000 = $30,000
Even with increased labor costs, Method 1 still remains the most cost-effective.