GDP per capita: Gross Domestic Product per capita measures the average income or wealth produced by each person in a country. It reflects economic development levels.
Human Development Index (HDI): HDI measures overall well-being by considering factors such as life expectancy, education levels, and income per capita. It helps compare development across countries.
Infrastructure: Infrastructure refers to essential physical structures like roads, bridges, schools, hospitals, etc., that support economic activity and quality of life in developed countries.