Market structures

Apple announce the selling of the new Iphone with the best options on market. People want to buy it as soon as possible.

In this market the phone company A has a market share of the 30%. The company B has the 25%. The rest (45%) is divided among 5 companies.

Clothes market has no entry or exit barriers. People know all the prices that exist. The product is very similar one to another.

In Spain 40 years ago RENFE was the only company that provided the railway service.