Trade agreements are contracts between countries that outline the rules for exchanging goods and services. These agreements aim to reduce barriers like tariffs and quotas, making it easier and cheaper for countries to trade with each other. By promoting trade, countries can boost their economies and provide consumers with a wider variety of products. There are different types of trade agreements, such as free trade agreements and customs unions. A free trade agreement allows countries to trade without tariffs, while a customs union involves countries agreeing on common tariffs for non-member countries. These agreements help foster international cooperation and economic growth.