1) Economic development aims to enhance economic well-being and create wealth to improve political and social conditions, though there is no single definition or strategy for achieving it.
2) Geography plays a key role in economic development, with three dimensions: economic density concentrates activity but also inequality; economic distance separates developed and underdeveloped areas within a country; and divisions like borders increase restrictions and disparities between places.
3) Achieving social justice through principles like equal participation, fair distribution based on contributions, and limiting exploitation can encourage development by satisfying and motivating workers, and enabling greater participation in markets.