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 term âfree marketâ is sometimes used as a synonym for laissez-faire capitalism. When most people discuss the âfree market,â they mean an economy with unobstructed competition and only private transactions between buyers and sellers. However, a more inclusive definition should include any voluntary economic activity so long as it is not controlled by coercive central authorities.