If a union restricts the supply of labor but cannot change the demand for labor, the union ________ the wage rate and ________ the level of employment

Why do the governments of some developing countries use tariffs to raise revenue?

What will be an ideal response?

Planned economies

a. can increase production rapidly but are likely to be inefficient b. can produce efficiently but can't guarantee consumers' needs are met c. can produce efficiently, but only at low levels of output d. can provide for all society's needs, but are likely to be inefficient e. none of the above