The document provides an overview of international economics relationships and international trade and development. It discusses the definition of international economics relationships and why countries engage in them. Countries generally participate in international economics relationships through trade, finance, investment, labor/human capital, and science/technology. The document also examines different international trade theories and the role of international trade in economic development. It outlines some benefits and risks of international trade, as well as common trade barriers like tariffs, quotas, subsidies, and embargoes. The World Trade Organization and its role in facilitating international trade is also summarized.