Unintended Consequences:Do-Good Laws Often Fail
From "Economics: Public and Private Choice" by Gwartney, Stoup, Sobel and Macpherson:
Pitfall #2 to Avoid in Economic Thinking: "Good intentions do not guarantee desirable outcomes."
In a Sunday NY Times article "Unintended Consequences," Freakonomics authors Steven Levitt and Stephen Dubner explain why "do-good" laws often fail:
1. The Endangered Species Act is actually endangering, rather than protecting, species.
2. The Americans with Disabilities Act, enacted in 1992, has led to a sharp drop in the employment of disabled workers.