Evaluate the statement: "There is no difference between the labor supply curve for the single competitive firm and the supply curve in a competitive market for labor."

The statement is incorrect. The supply curve in the competitive labor market reflects how firms must offer higher wages to attract workers; this is expressed as an upward sloping labor market supply curve. But each of the many firms in the market employ such a small fraction of the total available supply of labor that no single firm can influence the wage rate. Therefore, the individual firms are wage takers and their supply curves are perfectly elastic and parallel to the horizontal axis.