Calculation of Profit or Loss in the Short Run | Microeconomics

TL;DR

In perfect competition, firms maximize profit by producing where price equals average cost.

Transcript

in a situation of perfect competition whether a company earns profits or suffers losses depends on whether the price is greater or less than the average cost of production to maximize profits and perfect competition a firm must set its production output such that marginal revenue is equal to marginal cost however maximizing profits does not necessa... Read More

Key Insights

• 💯 Profit maximization in perfect competition depends on price relative to average cost.
• 🇨🇷 Firms shut down production based on variable costs, not fixed costs.
• 🇨🇷 Price exceeding average variable cost implies partial coverage of fixed costs.
• 🟰 Marginal revenue should equal marginal cost for profit maximization.
• 🏃 Shutdown rule in the short-run is based on the average variable cost.
• 🏃 Short-run supply curve and marginal cost curve differ due to shutdown decisions.
• 🥺 Price equaling average cost leads to breakeven without economic profit.

Questions & Answers

Q: How do firms in perfect competition maximize profits?

Firms maximize profit by producing where marginal revenue equals marginal cost, ensuring price is equal to average cost to earn economic profit.

Q: When should a firm shut down production?

A firm should shut down production in the short-run when a good's price falls below the average variable cost to minimize losses and if revenue doesn't cover variable costs.

Q: What are the implications of price being greater than average variable cost?

When price exceeds average variable cost, a firm covers variable costs and some fixed costs, allowing continued operation even at a loss.

Q: Why do the short-run supply curve and the marginal cost curve differ below the minimum point on the average variable cost curve?

The difference arises because a firm will shut down production if revenue is less than the average variable cost to minimize losses.

Summary & Key Takeaways

• In perfect competition, profit depends on price relative to average cost.

• Firms maximize profit at the point where marginal revenue equals marginal cost.

• Shutting down production depends on revenue covering variable costs, not fixed costs.