Firms in Competitive Markets

These flashcards cover key concepts related to firms in competitive markets, including definitions, calculations related to revenue and profit, decision-making processes, and market dynamics.

Competition

A market structure characterized by many buyers and sellers, where no single participant can significantly affect the market price.

Price Takers

Sellers in a competitive market that must accept the market price and have no incentive to charge less or more than this price.

Free Entry and Exit

A market condition that allows firms to enter or exit without any restrictions, essential for achieving long-run equilibrium.

Total Revenue (TR)

The total income a firm receives from selling its output, calculated as TR = P × Q.

Average Revenue (AR)

Total revenue divided by the quantity sold; for competitive firms, AR equals the price.

Marginal Revenue (MR)

The additional revenue generated from selling one more unit of output; MR = ∆TR/∆Q, and for competitive firms, it equals the price.

Profit Maximization

The firm’s objective to maximize profit, defined as total revenue minus total cost.

Marginal Analysis

A technique of analyzing the benefit of increasing or decreasing output by comparing marginal cost and marginal revenue.

Shutdown

A short-run decision to stop production based on current market conditions where total revenue is less than variable costs.

Exit Decision

A long-run decision by a firm to leave the market if the price is less than average total cost, resulting in losses.

Long-Run Supply Curve

The portion of the marginal-cost curve that lies above the average total-cost curve, indicating the firm’s supply capacity in the long run.

Zero Economic Profit

A situation where a firm's total revenue equals total cost, including opportunity costs, resulting in no incentive for firms to enter or exit the market.

Market Supply Curve

The horizontal sum of the individual firms' marginal-cost curves in a market.

Demand Shift

A change in market demand that can lead to new equilibrium by affecting prices and quantities available.