1. How many bookstores are on or near your campus? If there were more bookstores, how would the price of new and used books be affected?
2. What entry barriers exist in (a) the fast-food industry, (b) cable television, (c) the auto industry, (d) illegal drug trade, (e) potato chips, and ( f ) beauty parlors?
3. Why does RC Cola depend on advertising to gain market share? (See News, p. 244.) Why not offer cheaper sodas than Coke or Pepsi?