1. Explain how you would conduct an empirical study to investigate the availability of economies of scale in the airline industry.
2. What implications are there regarding mergers of different airlines?
3. 3 What disadvantages might be incurred with the hub and spoke system compared with the pointto-point system?
4. 4 Explain why the hub and spoke system relates to economies of scope rather than economies of scale

Hello, here is the link of the case study 7.2: Airlines page 272

http://www.railassociation.ir/Download/Article/Books/Managerial%20Economics-%20A%20Problem%20Solving%20Approach.pdf

I hope you can help me to answer those case question under that case study. THANK YOU! :)