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.
Monopolistic competition. Monopolistic competition is a market structure defined by four main characteristics: large numbers of buyers and sellers; perfect information; low entry and exit barriers; similar but differentiated goods.onopolistic competition is a market structure defined by four main characteristics: large numbers of buyers and sellers; perfect information; low entry and exit barriers; similar but differentiated goods.