monopoly, oligopoly, monopolistic, and pure competition? ANY EXAMPLES?

Question

DOES ANYONE KNOW ANY FIRMS THAT FIT IN THESE CATAGORIES? I WOULD LIKE TO RESEARCH TO PER MARKET

Answer 1

MONOPOLY
A market structure in which one firm sells a unique product into which entry is blocked in which the single firm has considerable control over product price and in which nonprice competition may or may not be found.

Examples / Importance
1. Public utilities: gas, electric, water, cable TV, and local telephone service companies, are often pure monopolies.
2. First Data Resources (Western Union), Wham-O (Frisbees), and the DeBeers diamond syndicate are examples of "near" monopolies. (See Last Word.)
3. Manufacturing monopolies are virtually nonexistent in nationwide U.S. manufacturing industries.
4. Professional sports leagues grant team monopolies to cities.
5. Monopolies may be geographic. A small town may have only one airline, bank, etc.

OLIGOPOLY
A market structure in which a few firms sell either a standardized or differentiated product into which entry is difficult in which the firm has limited control over product price because of mutual interdependence (except when there is collusion among firms) and in which there is typically nonprice competition.

Examples include many industrial products such as steel and large consumer durables such as appliances, the top cigarettes and beer companies.

Monopolistic Competition
A market structure in which many firms sell a differentiated product into which entry is relatively easy in which the firm has some control over its product price and in which there is considerable nonprice competition.
Examples are grocery stores and gas stations

Pure Competition.
A market structure in which a very large number of firms sell a standardized product into which entry is very easy in which the individual seller has no control over the product price and in which there is no nonprice competition; a market characterized by a very large number of buyers and sellers.
Examples : Agricultural products such as potatoes and wheat

Answer 2

Pure Competition

Answer 3

What kind of competition is a small printing shop that produces only comic books. Pure competition or monopolistic competition?

Answer 4

How about any that fits all 3 categories?

Answer 5

very good explanation thanks