Harold, president of a national stationery store, believes that the business has a responsibility not only to stockholders but also to customers, employees, suppliers, and the general public. harold subscribes to the of social responsibility.

Firms like papa john’s, domino’s, and pizza hut sell pizza and other products that are differentiated in nature. while numerous pizza chains exist in most locations, the differentiated nature of these firms’ products permits them to charge prices above marginal cost. given these observations, is the pizza industry most likely a monopoly, perfectly competitive, monopolistically competitive, or an oligopoly industry?