The document discusses the history of economic theories of development from the 1940s to present. Early theories focused on issues like low savings, population growth, and structural changes needed in developing economies. Later theories examined political and social factors, terms of trade, and the experiences of newly industrialized countries. More recent debates center around the Washington Consensus of free market policies versus structuralist and developmental state approaches of different countries. The document also discusses concepts of sustainable development and biophysical/ethical limits to unlimited economic growth. It concludes by discussing alternative definitions of development focused on well-being, needs, and ensuring future generations can meet their needs.