Final answer:
The World Trade Organization, the Trans-Pacific Partnership, and the United States-Mexico-Canada Agreement are key examples of international treaties where countries negotiate trade policy.
Step-by-step explanation:
International treaties play a crucial role in shaping global trade policies, allowing countries to negotiate terms that can lead to a reduction of tariffs, import quotas, and other barriers to trade. The World Trade Organization (WTO) is a cornerstone institution in this arena, with its agreements signed by the majority of the world's nations and aimed at promoting global free trade and resolving disputes.
The recent proliferation of regional trade agreements, such as the Trans-Pacific Partnership (TPP), the United States-Mexico-Canada Agreement (USMCA) - formerly known as NAFTA, and bilateral agreements like those between the U.S. and China indicate the complexity of modern trade relations, often described metaphorically as a 'spaghetti bowl' due to the intricate nature of these connections.