1. Acts of self interest impacting negatively on society as a whole.
Market failure
Where the free market does not deliver an allocation of resources that maximises social and economic welfare.
Acts of self interest impacting negatively on society as a whole.

2. Maximise social and economic welfare?
Is there market failure?
Should the government intervene?
How should it intervene?
To what extent should it intervene?

3. Cigarettes

4. Cigerettes

5. Alcohol

6. Obesity

7. Chewing gum

8. Chewing gum

9. Aircraft noise