Sometimes a special distinction is made among upper-middle-income or newly high-income economies, designating some that have achieved relatively advanced manufacturing sectors as newly industrializing countries (NICs). Yet another way to classify the nations of the developing world is through their degree of international indebtedness; the World Bank has classified countries as severely indebted, moderately indebted, and less indebted. The United Nations Development Program (UNDP) classifies countries according to their level of human development, including health and education attainments as low, medium, high, and very high. We consider the traditional and new UNDP Human Development Indexes in detail later in the chapter.