Chapter 10 - Using the competitive model. In this chapter students will be able to: Show how changes in market conditions or government policies affect the welfare of consumers, producers, and market participants as a whole; analyze the effects of an excise tax on a specific good on the welfare of consumers, producers, and market participants as a whole; detail how regulation of the . airline industry affected fares, airline company profits, and service quality. | Lecture Microeconomics: Theory and applications (12/e): Chapter 10 - Browning, Zupan