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.
Perfect competition is a type of market characterized by. - a very large number of small producers or sellers, - a standardized, homogeneous product, - the inability of individual sellers to influence price, - the free entry and exit of sellers in the market, and. - unnecessary nonprice actions.