Why have unions evolved? To what extent is the civilian labor force unionized?

Indicate the

(a) Industrial

(b) Occupational distribution of union members.

Why are relatively fewer white-collar workers organized than blue-collar workers? Briefly explain union membership differences related to gender, race, and age. Evaluate this statement: “Whether an individual worker is a union member depends not so much on the worker’s feelings toward membership as on her or his occupational choice.”