Use the following to answer questions:
-(Table: Variable Costs for Lawns) Look at the table Variable Costs for Lawns. During the summer, Alex runs a lawn-mowing service, and lawn-mowing is a perfectly competitive industry. Assume that costs are constant in each interval; that is, the variable cost of mowing 1 through 10 lawns is $100. His only fixed cost is $1,000 for the mower. His variable costs include fuel, his time, and mower parts. Which of the following is a point on Alex's short-run supply curve?

Question

Use the following to answer questions: 
-(Table: Variable Costs for Lawns) Look at the table Variable Costs for Lawns. During the summer, Alex runs a lawn-mowing service, and lawn-mowing is a perfectly competitive industry. Assume that costs are constant in each interval; that is, the variable cost of mowing 1 through 10 lawns is $100. His only fixed cost is $1,000 for the mower. His variable costs include fuel, his time, and mower parts. Which of the following is a point on Alex's short-run supply curve?

Quizplus · Accepted Answer

In a perfectly competitive market, the supply curve is the marginal cost curve above the average variable cost. Given the variable cost of $100 for 10 lawns, the marginal cost per lawn is $10. Therefore, at P = $60, Alex would supply 40 lawns, as the price covers the marginal cost.

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