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.
The price competition that moves. the market back to equilibrium is a direct result from actions taken by the dissatisfied. actor in the market â either by firms competing and lowering prices when a surplus. exists or by consumers competing and raising prices when a shortage exists. Thus, price competition only exists.