While people leave the labor force for a variety of reasons, the Department of Labor's Bureau of Labor Statistics (BLS) asks people if they were discouraged.
According to BLS, discouraged include people perceive that:
A)no work available,
B) they could not find work,
C) They lack schooling or training,
D) employers think they are too young or old
E) they other types of discrimination.
This subcategory of the people who want but are not seeking work has also grown. I've charted the percentage of people who want but are not seeking work, who say they are discouraged.
The figure now stands at 12.51 percent, a 33 percent increase year-over-year since last January. These people may be difficult to woo back into the labor force. While they may not impact unemployment figures they may not contribute much to the economy.