Industry WIKI

A mark is a written or imprinted symbol used to indicate some trait of an item, for example, its ownership or maker. Mark usually consists of letters, numbers, words, and drawings. Inscribing marks on the manufactured items was likely a precursor of communicative writing.

A price war is a form of market competition in which companies within an industry engage in aggressive pricing activity "characterized by the repeated cutting of prices below those of competitors". This leads to a cycle, where each competitor attempts to match or undercut the price of the other. Competitors are driven to follow the initial price-cut due to the downward pricing pressure,