Example image of eyePlorer eyePlorer map for 'Monopoly': Economics Greek language Competition Good (economics) Service (economics) Substitute good Perfect competition Monopsony Cartel Oligopoly Horizontal integration Natural monopoly Vertical integration Coercive monopoly Competition law Government-granted monopoly Interest group Government monopoly Monopolistic competition Minimum efficient scale Marginal cost Marginal revenue Price discrimination Deadweight loss Gains from trade Absolute value Price elasticity of demand Economic efficiency Barriers to entry Canal Rail transport United Kingdom Public utility American Telephone & Telegraph MCI Communications Sprint Nextel Standard Oil Exclusive dealing Product bundling Refusal to deal Tying (commerce) Aristotle Olive oil extraction Politics (Aristotle) Thales Sodium chloride Famine Sahara French Revolution Gabelle