Black Friday: lifetime access is on a special offer in the app, until November 30. Black Friday: special offer on lifetime access, until November 30. Download
박리성은 가격 변화에 대한 수요의 민감도를 나타냅니다.bakriseongeun gagyeok byeonhwae daehan sudoui mingamdo-reul natanabnida.Price elasticity indicates the sensitivity of demand to price changes.