A firm is producing 4 units of output at an average total cost of $10. When the firm produces 5 units of output, average total cost rises to $20. What is the marginal cost of the fifth unit of output?

In a perfectly competitive industry, the equilibrium price is $10, and the minimum average total cost of the industry’s firms is $20. If this is a constant-cost industry, we can expect that in the long run, firms will _____ the market, shifting the industry’s short-run supply curve _____.

If a firm practices first-degree price discrimination, the firm must

Which of the following is an example of the sunk cost fallacy?

Government encouragement of monopoly

Refer to the following figure. Suppose a firm spends $4,000 per day producing a good. The wage rate per worker is $400 per day and rental rate per unit of capital is $1,000 per day. The firm’s isocost line at the current expenditure level is represented by

In production theory, the short run is defined as _____ and the long run is defined as _____.

Karam recently opened a bar and grill. Out of the following costs associated with his new business, which is (are) variable costs? (Select all that apply)

To maximize profits (independent of the type of a market the firm is in), a firm should produce where

A perfectly competitive firm maximizes profit by producing 500 units of output, selling each unit for $5. The firm’s average variable cost is $2, and its average fixed cost is $1. What is the firm’s profit?