More Developed Countries (MDCs)

Less Developed Countries (LDCs): These are countries that, according to the United Nations, exhibit the lowest indicators of socioeconomic development.

Newly Industrialized Countries (NICs): These are countries whose economies have not yet reached a developed status but have outpaced other developing nations.

Human Development Index (HDI): This is a statistic composite index of life expectancy, education, and per capita income indicators used to rank countries into tiers of human development.