Economic development and economic growth are related but distinct concepts. Economic development implies progressive socioeconomic changes that improve living standards, such as increases in income, investment, education, and health. It focuses on human capital development and reducing inequality. Economic growth simply means a rise in a country's real output of goods and services, as measured by increases in GDP. Growth is a necessary but not sufficient condition for development. While growth metrics like changes in GDP are widely used, development indicators like the HDI that measure quality of life are more relevant for assessing progress in developing countries.