Monopoly: one dominant seller
Monopoly: one dominant seller

A monopoly is a market supplied by a single seller, or by one seller so dominant that buyers have no real alternative. A monopolist is usually a price maker because it has enough market power to choose its price rather than simply accepting the market price.
Step-by-step lessons on OCR GCSE Economics 2.5.4 Monopoly and oligopoly. Each one builds up to exam-style questions. Build a solid grasp of supply and demand and cost/revenue calculations before tackling the evaluation-heavy policy topics.