Monopoly Economics Flashcards

This set of vocabulary flashcards covers the fundamental concepts of monopoly, including barriers to entry, price-setting strategies, efficiency comparisons, rent seeking, and regulatory frameworks from Chapter 13.

Monopoly

A market with a single firm producing a good or service for which no close substitute exists, protected by a barrier that prevents other firms from entering.

Natural barrier to entry

A barrier that creates a natural monopoly by making it more efficient for a single firm to supply the entire market.

Legal barrier to entry

A barrier that creates a legal monopoly through public franchises, government licenses, patents, or copyrights.

Single-price monopoly

A firm that must sell each unit of its output for the same price to all its customers.

Price discriminating monopoly

A firm that sells different units of a good or service for different prices.

Total Revenue ($TR$)

The total receipts of a firm, calculated as $TR = P \times Q$.

Marginal Revenue ($MR$)

The change in total revenue that results from a one-unit increase in the quantity sold, calculated as $MR = \frac{\Delta TR}{\Delta Q}$.

Economic Profit

The profit amount maximized where $MR = MC$ and $P = D$, calculated as $(P - ATC) \times Q$.

Elastic Demand

A condition where the elasticity of demand for a good is greater than 1 ($elasticity > 1$), typically required for monopolistic demand.

Rent seeking

The pursuit of wealth through capturing economic rent (monopoly profit) by either buying or creating a monopoly.

Rent-seeking Equilibrium

A state where competition among rent seekers pushes up $ATC$, resulting in zero economic profit and increased deadweight loss.

Perfect price discrimination

Occurs when a firm sells each unit of output for the highest price anyone is willing to pay, eliminating consumer surplus and making $Deadweight\,loss = 0$.

Marginal cost pricing rule

A regulation requiring a natural monopoly to set $P = MC$, resulting in an efficient quantity but an economic loss.

Average cost pricing rule

A regulation requiring a natural monopoly to set $P = AC$, enabling the firm to break even but resulting in deadweight loss.

Rate of return regulation

A regulation where a firm justifies its price by showing a low rate of return on capital, which often results in over-inflated wasteful expenditure.

Price cap regulation

A regulatory method that involves setting a price ceiling to control the monopoly's pricing.