MARKET STRUCTURE ANALYSIS 3
Introduction to Market Structures
All markets that exist within any economy must have a specific market structure in which they
reside. Without such a market structure, there would be little organization and chaos would reign within
the business community. The Business Dictionary defines market structure as “The interconnected
characteristics of a market, such as the number and relative strength of buyers and sellers and degree of
collusion among them, level and forms of competition, extent of product differentiation, and ease of entry
into and exit from the market” (market structure definition). Without a sufficient number of buyers and
sellers any market system or economy is destined to devolve. Market structures measure not only the
number of sellers, but how well they get along and work together for the accomplishment of their ultimate
ends. On many occasions, businesses will work together to their benefit, but the detriment of competitors
and sometimes even customers. In addition to these characteristics, the competition that develops within
an economy or a market is a big determining factor of the health of that market. Every market system
which has any degree of freedom and autonomy to it will have different products that are developed over
time. A final part of a market structure is the ability of that structure to be flexible and adapt to the
change that is inevitable in any society. The invention of computers, supercomputers, and information
technology are excellent examples of the adaptability that is essential. Whether the market structure is
perfect competition, monopolistic competition, oligopoly, or pure monopoly, each has its own
characteristics and specifications.
Perfect Competition
One of the main tenets that make a market economy work is the theory of supply and demand.
Generally, without any outside forces acting upon it, this is an inverse relationship. As supply goes up,
demand goes down. As supply becomes scarcer, the demand will increase. Supply and demand is
important for many of the market structures, but none more so than perfect competition. In this type of
market structure, the price of a homogenous good is determined by supply and demand as opposed to
other market forces such as competition or superior products. It is important to note that in a perfect