Monopolistic Competition and Monopoly Lecture Notes

This set of vocabulary flashcards covers key concepts from Monopolistic Competition and Monopoly, including market characteristics, profit-maximization rules, regulation, and efficiency terms.

Monopolistic Competition

A market structure characterized by many sellers, differentiated products, free entry and exit, and firms that have downward-sloping demand curves with some control over price.

Advertising Goals

In monopolistic competition, the objectives are to increase demand and make the demand curve more inelastic.

Cost of "Differentness"

The increase in the average total cost ($ATC$) of a monopolistically competitive product resulting from the use of advertising to differentiate it.

Profit-Maximizing Condition (Monopolistic Firm)

The point where marginal revenue equals marginal cost ($MR = MC$); for these firms, total profit is maximized and MR < P.

Long-Run Equilibrium (Monopolistic Competition)

A state where firms earn zero economic profits and $(P = ATC) ≥ (MC = MR)$ because there are no significant barriers to entry.

Monopoly

A market structure where one firm makes up the entire market, producing unique products with no close substitutes, and entry/exit is blocked.

Barriers to Entry

Obstacles that prevent new firms from entering a market, which can be legal (patents), natural (ability or cost advantages), or technological.

Natural Monopoly

An industry where a single firm can produce at a lower cost than two or more firms could, typically arising from economies of scale.

Welfare Loss from Monopoly

The loss to society represented by the reduction in output and higher prices compared to perfect competition, often illustrated by specific consumer and producer surplus triangles.

Price Discrimination

The practice of charging different prices to different individuals or groups, where consumers with less elastic demand pay higher prices and those with more elastic demand pay lower prices.

Fair Price

A regulatory pricing strategy for natural monopolies where the price is set equal to average total cost ($P = ATC$), allowing the firm to earn a normal profit.

Lazy Monopolist

A firm that has a monopoly position but does not push for cost efficiency, instead enjoying its market position and potentially failing to maximize profits.

$X$-inefficiency

A result of lazy monopoly behavior where a firm operates far less efficiently than it is technically capable of.

Corporate Takeover

A method to improve efficiency where another firm or group issues a tender offer to buy stock, gain control, and install new managers.

Dynamic Efficiency

A market's ability to promote cost-reducing or product-enhancing technological change over time.