ok, so I have an assignment for my econ 100 class and cannot get these three questions. They are relevant to the rest of the assignment and cant move forward until I get them done and they are worth some good points. Thanks ahead for your time.

1) Come up with an example of an activity that creates a positiveexternality not used in class and clearly explain what makes it a positive externality. (consider who benefits indirectly)

2) The textbook (chapter 13) uses the example of the market for flu shots as an example of a good that creates a positive externality from individuals' economic activity (consumption of the medical treatment). There are identifiable net social benefits from this market activity.

What is the private benefit associated with consumption of the flu shot, and who is the recipient of the private benefit?

What is the positiveexternal benefit, and whoinvolved gets the additional benefit?

3) What makes something a negative externality? (address who is acting, who is impacted, what is measured)