Unlike the traditional agricultural or industrial society, the service based knowledge economy is the feature of the 21st century. Such an expanding knowledge economy requires serious research in the field of investment in human capital. Research in the field requires special aid. The characterizing of human capital into various dimensions as cultural, social, economic and symbolic capital requires wide range of research. In this background an alternative measure to stock of human capital, human capital substitution, impact of new technology and skill level, specificity of training, long term projections of man power supply, human capital formation, impact of education on human capital and investments in human capital.