Market value (n.) is set by the great middling mass of producers — unless the worst or the best producers are numerous enough to drag it their way.
Market value (n.) and demand regulate each other in a circle: supply and demand move market price off market value, while market value sets the centre around which supply and demand swing.
Market value (n.) is not explained by supply and demand; it explains their fluctuations.
Market value (n.) is partly speculative for a security, set not by actual revenue but by revenue reckoned in advance.
Market value (n.) set by the worst soil makes society pay 250 per cent above the real production price for corn — competition producing a false social value.
Market value (n.) is set by a social act, even if society performs it unconsciously and unintentionally.