7.In the textbook, The Applied Theory of Price, D. N. McCloskey refers to the equation MR = MC as the rule of rational life. What types of firms follow this rule?
8.Rapido, the shoe company, is so popular that it has monopoly power. It's selling 20 million shoes per year, and it's highly profitable. The marginal cost of making extra shoes is quite low, and it doesn't change much if they produce more shoes. Rapido's marketing experts tell the CEO of Rapido that if it decreased prices by 20%, it would sell so many more shoes that profits would rise. If the expert is correct, at its current output, what can you infer about its marginal revenue and marginal cost?