Economic development refers to increases in the standard of living of a population associated with sustained growth from a simple, low-income economy to a modern, high-income economy. Its scope includes the process and policies by which a people’s economic, political, and social well-being improves.
Sustainability is the ability to endure or maintain over time. It can be defined in biological terms as the ability of an ecosystem to maintain ecological processes, functions, biodiversity and productivity over time.