Why average income is an important criteria for development?

Average income is a crucial criterion for development as it provides a measurable indicator of the economic well-being of a population. Higher average incomes often correlate with improved living standards, access to education, healthcare, and overall quality of life. Additionally, it reflects the distribution of wealth within a society and can highlight economic disparities that need to be addressed for sustainable development. Ultimately, average income serves as a foundational metric for policymakers to assess progress and implement effective economic strategies.