SuperFreakonomics

But if a government really wanted to crack down on illicit goods and services, it would go after the people who demand them. If, for instance, men convicted of hiring a prostitute were sentenced to castration, the market would contract in a hurry.

SuperFreakonomics

Mastery arrives through deliberate practice. Deliberate practice has three key components: setting specific goals; obtaining immediate feedback; and concentrating as much on technique as on outcome.

SuperFreakonomics

The economic approach isn’t meant to describe the world as any one of us might want it to be, or fear that it is, or pray that it becomes—but rather to explain what it actually is. Most of us want to fix or change the world in some fashion. But to change the world, you first have to understand it.

SuperFreakonomics

People respond to incentives, although not necessarily in ways that are predictable or manifest. Therefore, one of the most powerful laws in the universe is the law of unintended consequences.