刘同学2018-05-17 13:50:02

Which of the following industry is most likely to earn economic profits? A Firms in an industry that is characterized by low threat of substitute products and high rivalry among existing competitors. B Firms in an industry that is characterized by high barriers to entry and low bargaining power of buyers. C Firms in an industry that is characterized by high bargaining power of suppliers and low threat of new entrants. 这道题答案是b，有点不理解，对客户没有定价权哪还有超额利润