Market structures.
Oligopoly
There is more than one producer in this market system, but not tons of them
The products sold in this market are similar, not exact replicas of each other
Because of the high start-up costs it is not easy to get into this market
Due to there only being a few producers in this market they hcan slightly control their prices
Monopolistic Competition
There are many producers in this market they offer almost the same product but varried
The producers try to mke their products different from the other companies, although some are very similar
This market is not one of the more difficult ones to get into
They can control their pricing, however because there are many other companies who produce similar substitute products, they cannot fully control their pricing the way they would like to
Monopoly
Generally in monopolies there is only one producer of the good
It is also common that in a Monopoly market the product being sold is usually a very unique one
It is a very difficult market to just enter into
Because there is generally only one company they can set whatever type of price they want to
Perfect Competition
There are many producers and consumers in perfect competiton
Identical products (Also called commodities)
It is very easy to get into this market, no one producer can or will dominate this market
The producers are not able to set their own prices due to the amount of competing companies
Market failures
Imperfect competition
Externalities