In many ways, love seems to be totally divorced from economics. But then you realize - well, the stakes are high. This is something that matters to us. We're dealing with scarcity. I mean, if you're dating one person, at the very least, you don't have as much time to date another person. And you may well find that you can only date one person at a time.

Ten percent of American businesses disappear every year. ... It's far higher than the failure rate of, say, Americans. Ten percent of Americans don't disappear every year. Which leads us to conclude American businesses fail faster than Americans, and therefore American businesses are evolving faster than Americans.

There is much more to life than what gets measured in accounts. Even economists know that.

Loss aversion is a really disproportionate anxiety about stuff that doesn't matter very much. So for instance, if you lose $5, you feel really bad about the $5 you've lost. You're cursing yourself. You're going through it again and again. If, on the other hand, you find $5, you go - hey, great, five bucks. And you've forgotten about it really quickly.

Synthetic Worlds is a surprisingly profound book about the social, political, and economic issues arising from the emergence of vast multiplayer games on the Internet. What Castronova has realized is that these games, where players contribute considerable labor in exchange for things they value, are not merely like real economies, they are real economies, displaying inflation, fraud, Chinese sweatshops, and some surprising in-game innovations.

The more grotesque your boss's pay and the less he has do to earn it, the bigger the motivation for you to work with the aim of being promoted to what he has.

Love may be boundless and abundant, but time isn't. Time is finite.