Specific language impairment (SLI) is diagnosed when a child's language does not develop normally and the difficulties cannot be accounted for by generally slow development, physical abnormality of the speech apparatus, autism spectrum disorder, acquired brain damage or hearing loss.
Perfect competition. A perfectly competitive market is a hypothetical market where competition is at its greatest possible level. Neo-classical economists argued that perfect competition would produce the best possible outcomes for consumers, and society.
Market structure is a classification for the key traits of a market. The characteristics of a market that is competitive would include: a large number of buyers and sellers, easy entry to and exit from the market, homogeneous products, and the firm is a price taker.Take McDonalds fast food restaurant for example.ustomer satisfaction coupled with relatively low prices keeps McDonald's profitable. Another quality of competitive market structure that may be overlooked, but is vital to the fast food industry is the ease of entry into the market.