Other things being equal, a better supply of workers tends to lower real wages.
The supply of labor refers to the number of hours a worker is willing and able to work in a certain period, whereas the demand for labor determines what percentage employees an employer is willing and able to recruit at a specific time and wage rate.
What causes the labor supply to grow?
The labor supply rises with increase while falling with population decline.
Because of their leaders' concern that an increase in workers will cause the labor supply curve to move to the right and drive down wages, labor unions have usually opposed immigration increases.
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