Discussion Questions: Externalities and the Environment Meyer describes the "Tragedy of the Commons

Discussion Questions:

1. Externalities and the Environment
   
   Meyer describes the "Tragedy of the Commons." The IMF article explains how this type of problem is an example of an "externality."  What is an externality? What might be a good government policy to solve the problem of the environmental externality that leads to high greenhouse gas emissions?
2. Moral Hazard and Adverse Selection
   
   "Moral hazard" is a term often used in the context of peoples' behavior once they have insurance.  Szuchman and Anderson explore the idea of moral hazard in personal relationships. How would you define moral hazard? Provide an example of a moral hazard that you have observed in your own community or workplace.
   
   How does moral hazard differ from adverse selection?  Provide an example to illustrate this concept.