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.
In a monopolistic competitive market, the number of sellers is large (but not as many as in perfect competition) and they are not dependent on rivalsâ action. They act quite independently without caring for their rivals. 4. Competition: