Economic growth refers to an increase in a country's productivity, income and wealth. It is typically measured by the rate at which a country's Gross Domestic Product (GDP) grows over time. Economic growth can be driven by various factors such as increased investment in infrastructure, technological advancements, improvements in education and healthcare systems, and an increase in consumer spending. The goal of economic growth is to improve the standard of living for citizens through higher income levels, job creation, and access to better goods and services.