This course try to understand how labor markets work. The students will grasp why some persons chose to work, while other persons withdraw from the labor market; why some firms expand their employment at the same time that other firms are laying off workers; or why earnings are distributed unequally in most societies. Important topics addressed by this course include the determination of the income distribution, the economic impact of unions, the allocation of a workers time to the labor market, the hiring and firing decisions of firms, labor market discrimination, the determinants of unemployment, and the workers decision to invest in human capital.