Global economics refers to the study of how countries interact through trade, investment, and finance. It examines the flow of goods, services, and capital across borders, influencing economic growth and development. Key concepts include international trade, exchange rates, and global supply chains, which help explain how economies are interconnected. The field also looks at the impact of global events, such as recessions, trade agreements, and political changes, on national economies. Understanding global economics is essential for policymakers, businesses, and individuals, as it helps them navigate the complexities of the world economy and make informed decisions.