Charles Duhigg

There is a woman named Wendy Wood, who did a study when she was at Duke, and she followed around college students to try to figure out how much of their day was decision-making versus how much was habit. And what she found was that about 45 percent of all the behaviors that someone did in a day was habit.

As homeowners see the value of their homes decline, they become more likely to delay purchases of the big items - like automobiles, electronics and home appliances - that are ballasts of the American economy. When those purchases decline, large manufacturing firms, suddenly short on funds, could begin laying off employees.

When I decide who to vote for as president, I ask myself who will be best for America and for the world. An important component of my answer involves my assessment of the candidate's willingness and ability to protect Israel's security, since I strongly believe that a strong Israel serves the interests of the United States and of world peace.