In short, humans are programmed to get bored.

Even if you are planning a birth with an epidural, the evidence suggests that a doula can help make things go much more smoothly.

Education campaigns ... may not be enough, at least not alone. If people have no incentive to avoid AIDS on their own, even if they know everything about the disease, they still may not change their behavior.

When I meet people on airplanes and they find out I'm an economist, they usually ask about stock tips.

The key to good decision making is evaluating the available information - the data - and combining it with your own estimates of pluses and minuses. As an economist, I do this every day.

As people do a task, they improve at it.

Talking to women about birth can be polarizing.