Mario Carrasco "In high school, I was good at English and it felt good. They were supportive but worried when they found out I was going to study English," he said.

So says Mario Carrasco of the market research agency Think Now. Although his group is "progressive on social issues," he writes, "as researchers, ...

Mario Carrasco, the co-founder of ThinkNow, shares how he ventured into market research after teaching high school English in Southern California.