Read the article "The Guardian view on ghost flight: a symptom, not the disease", following the below link: https://www.theguardian.com/commentisfree/2022/mar/06/the-guardian-view-on-ghostflights-a-symptom-not-the-disease

Using the information from the article, address the following two questions: a) Relate this article to the content of the module and discuss in which respect private outcome can be different from social outcome. Explain why ghost flights although being bad for the environment are still carried out. Use graph(s) to make your points clear. (15 marks)

b) Which terminology do economists use to define this type of issue? Explain if/how government intervention could address this issue. Use graph(s) to make your points clear.