Market Structures
In economics there are four different strategies that study and attempt to explain how
businesses interact with each other and with their customers. Each of the different practices will
also affect the supply and demand for their business, which in turn will modify the price of
services or goods. Each of these four market structures is used in modern economies; some are
used more than others, not only depending on the business type but also depending on type of
government. Governments are instrumental in the economic growth of the country. The four
different types of markets are Perfect Competition, Monopolistic Competition, Oligopoly, and
Monopoly.
One good way to determine what market structure exists is to examine both the number
of firms and entry barriers. The measure of entry barriers is “High”, “Moderate”, and “None”
and the number of firms varies from one to few to very many (Samuelson, 2015, p. 215).
Markets with high barriers to entry create a more difficult market for competition and thus tend
to lend themselves towards monopolies. If only one firm exists in a market with high entry
barriers, the market structure is a monopoly. In a market where only a few firms exist due to high
or moderate barriers, the market is said to be an oligopoly. In a market with no barriers, there
will be many firms and the market is called Perfect Competition. Monopolistic Competition also
occurs in a market with no barriers and many firms, the only difference being the products being
sold (Samuelson, 2015, p. 215). As market structures change, it becomes necessary for
businesses to adapt. In a monopoly, where businesses are not competing with one another, then
the business does not need to find new techniques or make improvements because there is no
market pressure challenging or competing.