Abstract：Since the theory of Human Capital emerging, many economists have developed it and exerted an important influence in many fields. Sherwin Rosen, an American's economist, from the point of view of education, studied the problem of investment in education and occupational choice. Rosen built a model of the demand for college education derived from the theory of comparative advantage and models of self selection. He also focused attention on the problem of learning and experience in the labor market, including the role of the labor market in the transmission and acquisition of marketable skills and knowledge, an elementary model and its additional properties of the market for learning opportunities, occupational discrimination, etc. This paper specifies Rosen's theory, and presents some deductions and conclusions.
