摘要: In the late 1960s, attention focused on persistence of poverty and income differentials basis sex (especially) race. Neoclassical economic theorists such as Becker (1957) held that were results tastes for discrimination uneconomic and, thus, they would tend to be eroded by forces competition. Another branch standard theory, once again led (1964), racial in stemmed heavily from differences human capital. This implied improved education training programs should enable reduced.