Perfect Competition- many firms, freedom of entry, homogeneous product, normal profit Monopoly- One firm dominates the market, barriers to entry, possibly supernormal profit.
Economists suppose that there are various
buyers and sellers in the marketplace which means that competition is
everywhere in the market which in turn allowed price to change in reaction to
changes in supply and demand. In Economics, there are some market structures that
describes how each structure compete in a different competitive situation.
Monopoly is one. Monopoly is one of
the market structures whereby there is one producer or seller which means, the
industry is the single business. This market structure prohibits others from
joining the market when a company has a patent or copyright.
Oligopoly is another market
structure where there are chosen few firms that make up an industry. Both market
structures have high barrier entries where competing markets for share are
interdependent as the consequence of market forces.
