Determine whether the following statements are true or false: One of the methods unions use to raise wages is by decreasing industry employment. -- [ Select ] A firm is willing to hire a worker when the worker's wage is greater than the marginal product of labor. -- [ Select ] Compensating differentials in labor markets refer to wage differences that compensate for the different educational qualifications of workers. -- [ Select ] The marginal product of labor is often decreasing in the number of workers hired. -- [ Select ] The real wage of a job includes only the monetary pay, excluding other factors like job safety or the nature of the work environment. -- [ Select ] Preference-based discrimination is the only type of discrimination present in labor markets. -- [ Select ]