The Existence of Noncompeting Groups and Other Occupational Differences in Labor

Multiple Choice

The existence of noncompeting groups and other occupational differences in labor markets means that

A) homogeneous, competitive labor markets are possible in the short run.
B) the government must step in to ensure that enough people enter unskilled occupations.
C) the market demand curves for all labor groups are highly price inelastic.
D) wage differentials will tend to persist over time.
E) wages have little or no effect on the supply curves of labor.