Everything contributed one way or another.
Although my majors were sciences, the literature and anthropology courses I took in summer school to keep the GI bill money coming certainly contributed to my life.

At times I wished I had taken more economics, but after reading a new book on how some of the theories taught in schools contributed to the recent bubble (hedge funds, etc.), it's probably just as well I didn't. I might have saved myself from being another Madoff.