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.

I was part of the draft resistance movement in L.A. where we did demonstrations at the draft centre and burned our cards and made a lot of trouble on campus. I had a student classification and they said that anybody who'd taken part in these demonstrations would be reclassified and drafted. And that's when I went to Canada.