The definition of a trial is  a hearing in a court case, a test or a hardship. An example of trial is the court case of an accused robber. An example of trial is the use of a small size bottle of shampoo to sample the product.
An example of a market that meets all four conditions for perfect competition is: wheat. A market structure with many sellers and many buyers is: perfect competition. Offering products of different tastes and shapes is an example of: nonprice competition. An example of a barrier to entry is: high start-up costs. Compared to a market with perfect competition, a monopoly often has: higher prices and fewer goods. In many industries, deregulation has resulted in: lower prices for consumers. A market that is an oligopoly has: a few firms dominating the market.
The existence of such perfect markets are quite rare in the real world, and the perfectly competitive marketplace is a formation of economic theory to help better understand other forms of market competition such as monopolistic and oligopolistic.erfect competition explains an economic theory of a marketplace which does not happen to exist in reality. Summary: Perfect Competition vs Monopolistic Competition. 1  Perfect and monopolistic competitions are both forms of market situations that describe the levels of competition within a market structure.