This site uses an example of "pushcarts on the beach" to demonstrate a monopolistically competitive market structure and how as more firms enter the market, price, quantity, and deadweight loss are all effected.

This site shows costs curves for a firm in a perfectly competitive market, and has an interactive graph to show what their profit margin is at various levels of production.

This site uses interactive graphs to show how changes in demand would change a firm's output, price, and profits or losses in a monopolistically competitive market structure.

This was the home of anti-trust legislator Henry De Lamar Clayton, Jr. He was the author of the Clayton Antitrust Act, an act that prohibited particular types of conduct that were deemed to not be in the best interest of a competitive...