Market structure refers to the organization of a market based on the number of firms, and includes pure competition, pure monopoly, monopolistic competition, and oligopoly. Pure competition involves many independent sellers offering identical goods, while pure monopoly features a single seller of unique products. Monopolistic competition consists of many small businesses selling similar but not identical items, and oligopoly comprises a small number of firms providing standardized or differentiated offerings.

1. MARKET STRUCTURE
Economics

2. DEFINITION:
 The manner in which a market is organized,
based largely on the number of firms in the industry.

3. BASIC MARKET MODELS
 Perfect / pure type
 Perfect or pure competition
 Pure monopoly
 Imperfect / non-pure type
 Monopolistic competitions
 Oligopoly

4. MARKET MODELS
 Pure competition
- Where independent sellers offering identical products.

5. PURE MONOPOLY
 Only one seller or producer supplying unique goods
and services.

6. MONOPOLISTIC COMPETITION
 Large number of small producers or suppliers
selling similar but not identical products.

7. OLIGOPOLY
 Where there are few firms offering standardized or
differentiated goods and services.