How does trade create wealth?

Trade creates wealth by allowing specialization and access to larger markets. Economic theory shows that when individuals or countries focus on producing goods they can make relatively efficiently (comparative advantage) and trade for others, total output rises. Trade reallocates scarce resources toward higher productivity. Consumers gain by accessing a wider variety of goods at lower prices. Producers gain by finding bigger markets and cheaper inputs. In essence, trade increases economic efficiency and living standards: you get more value (imports) than you give (exports), boosting overall welfare. History and data confirm trade's broad benefit to economic growth, even though its gains may be unevenly distributed.