公民與社會 高中 4年以上以前

怎麼看出成本降低，所以cable TV的替代品變多，因為有兩種一種是satellite TV一種是cable TV

8. Satelltte TV isaclose substitute for cable TV. In the 1990 developed that made it less costly for individual conSuIners Service. Ihis caused the price elastieity of demand for cable TV : A. becorme more inelastic. B. become less elastic. G. become more elastic. D. shiftt to the leftt. AnSs: C Feedback: Goods with more Substitutes have greater price &lasticity (eoause conSsumers can readily Switch to or away from them 1f their price changes.

公民與社會 高中 4年以上以前

可以中文解說一下嗎？幫幫忙拜託

肝 人 / 由 ~ | 1 27/ You have two options for hoWw to spend the afternoon. You can etther go See a movie Wi your roommate or work as atutor for the Math Departmemt. From experience, you knoW that going to see amovie gives you $20 worth 9 enjoyment, anq With your stuwewt qiscount, ammove ficket only costs $12. If you spend the afternoon working as atmath tutor, you Wi gt ba SA5