A minimum wage law tends to ?

A. Help all teenagers because they receive a higher wage than they would otherwise
B. have no impact on unemployment as long as it is set above the competitive equilibrium wage
C. Create more Unemployment is high-skill job markets than in low-skill job markets
D. Create more unemployment in low-skill job markets than in high-skill job markets

Which of the following is an example of a reason why firms might pay efficiency wages ?

A. At equilibrium wages workers sleep when the boss is not looking because workers are not deeply concerned about being fired
B. At equilibrium wages workers often quit to find better jobs.
C. At equilibrium wages only minimally qualified workers apply for the job
D. At equilibrium wages, workers cannot afford a healthy diet so they fall asleep at work due to a lack of energy
E. All of these answers

Unions tend to increase the disparity in pay between insiders and outsiders by ?

A. increasing the wage in the Unionized sector, Which may create a decrease in the supply of workers in the non-unionized sector
B. Increasing the demand for workers in the Unionized sector
C. decreasing the demand for workers in the Unionized sector
D. Increasing the wage in the Unionized sector which may create an increase in the supply of workers in the non-unionized sector