Final answer:
Development economics is the study of factors that contribute to the economic growth of a country. It focuses on understanding and implementing policies to improve economic and social well-being in low- and middle-income nations or regions.
Step-by-step explanation:
The study of factors that contribute to the economic growth of a country is known as development economics. Development economists analyze the forces and outcomes of economics in developing nations, with a focus on understanding and implementing policies and practices to improve economic and social well-being in low- and middle-income nations or regions. It is a wide and varied area of study that includes various factors such as politics, fiscal policy, education, innovation, health and medicine, international trade, natural resources, and military/geopolitical considerations.