Erik Dahlman, Chapter 2, Question 6

The concept of incentives is extremely interesting as with the right incentives, you can achieve anything, such as clean air, but with the wrong incentives, you end up with the wrong solution, not solving the most simple of problems, for example telling people to simply not drive for one day. Incentives is a finicky issue as it is so easy to get wrong and the consiquences are huge if they are done wrong.