I think we could get people to both be more productive and happier. We're less productive as individuals. We're less productive as companies, and we're more miserable.

What reminds you in your environment about saving? Nothing.

We can think about how we reduce the pain in paying. So, for example, credit cards are wonderful mechanisms to reduce the pain of paying. If you go to a restaurant and you are paying cash, you would feel much worse than if you were paying with credit card. Why? You know the price, there's no surprise, but if you're paying cash, you feel a bit more guilt.

When parents have college savings accounts for their kids, their kids show higher social and cognitive performance.

If you ever go bar hopping, who do you want to take with you? You want a slightly uglier version of yourself. Similar ... but slightly uglier.

When we think about labor, we usually think about motivation and payment as the same thing, but the reality is that we should probably add all kinds of things to it - meaning, creation, challenges, ownership, identity, pride, etc.

The problem with opportunity cost is that opportunity cost is divided among many, many things.