Perfect competition is a market structure where many firms offer
a homogeneous product. Because there is freedom of entry and exit
and perfect information, firms will make normal profits and prices
will be kept low by competitive pressures.
Features of perfect competition
- Many firms.
- Freedom of entry and exit; this will require low sunk
costs.
- All firms produce an identical or homogeneous product.
- All firms are price takers, therefore the firm’s demand curve
is perfectly elastic.
- There is perfect information and knowledge.
Examples of perfect competition
In the real world, it is hard to find examples of industries
which fit all the criteria of ‘perfect knowledge’ and ‘perfect
information’. However, some industries are close.
- Foreign exchange markets. Here currency is all homogeneous.
Also, traders will have access to many different buyers and
sellers. There will be good information about relative prices. When
buying currency it is easy to compare prices
- Agricultural markets. In some cases, there are several farmers
selling identical products to the market, and many buyers. At the
market, it is easy to compare prices. Therefore, agricultural
markets often get close to perfect competition.
- Internet related industries. The internet has made many markets
closer to perfect competition because the internet has made it very
easy to compare prices, quickly and efficiently (perfect
information). Also, the internet has made barriers to entry lower.
For example, selling a popular good on the internet through a
service like e-bay is close to perfect competition. It is easy to
compare the prices of books and buy from the cheapest. The internet
has enabled the price of many books to fall in price so that firms
selling books on the internet are only making normal profits.
Ebay and Perfect Competition
There are several features of eBay which make the market
competitive – and perhaps close to the model of perfect
competition.
- Many buyers – thousands of people have access to viewing items
listed on eBay. If I sold it in traditional means, smaller numbers
of buyers would mean lower prices for me the seller.
- There are also many sellers who are free to enter eBay.
- Perfect Information. It is easy to search for iPads which are
being sold.
- Freedom of entry. Anyone can enter.
A monopoly exists when only one company can supply an essential
product or service in a given region because of significant
barriers to entry for any competitor. The barriers can be legal or
regulatory, economic, or geographic.
In the absence of competitors, a monopoly company can raise its
prices, restrict its production, or safely ignore customer service
concerns.
Best examples of a monopolistic
market are as follows:
- Netflix.
- Alibaba.
- Amazon (Amazon_Cloud, Amazon_Prime)
- Nike(as it sells certain different products than Adidas or
Reebok or any other top brand)
- Apple (Mainly in computers)
- Microsoft.
- Google.
- Youtube.