What is Barriers To Entry?

Legal Definition
In theories of competition in economics, a barrier to entry, or an economic barrier to entry, is a cost that must be incurred by a new entrant into a market that incumbents do not have or have not had to incur.

Because barriers to entry protect incumbent firms and restrict competition in a market, they can contribute to distortionary prices and are therefore most important when discussing antitrust policy. Barriers to entry often cause or aid the existence of monopolies or give companies market power.
-- Wikipedia
Legal Definition
Issues that new firms encounter that prevent or restrict them from entering a market. These issues can be related to the economy, a flooded market, high investment needs, brand competition, and pricing just to name a few. An exit barrier can make it hard