charge similar value, customers' interest is parted uniformly between them. It is least difficult to focus working on this issue of duopoly where there are only two firms, albeit the outcomes hold for quite a few firms more prominent than one. A critical presumption about the innovation is that the two firms have a similar consistent unit cost of creation, so negligible and normal expenses are something very similar and equivalent to the serious cost. This intends that as long as the cost it sets is above unit cost. the firm will supply any sum that is