Hub is a term used to describe a specialized node in a network that connects to several other nodes (i.e., it has a high number of linkages into and out of it). Read more.
Human capital generally refers to the well-being, health and productive potential of individual people and includes physical and mental health, education, motivation, and professional skills. Read more..
The united nations standard measure Tools of country’s development, based on indicators of income, education (GDP per capita) and life expectancy (expectation of life at birth).