Chapter 3 discusses the global trade environment, focusing on the World Trade Organization (WTO) and various types of preferential trade agreements such as free trade areas and customs unions. It outlines the regional agreements in North America, Latin America, and Asia-Pacific, highlighting key trade agreements like NAFTA (now USMCA), Mercosur, and ASEAN. The document also touches on major agreements such as the Trans-Pacific Partnership (TPP), Transatlantic Trade and Investment Partnership (TTIP), and the Comprehensive Economic and Trade Agreement (CETA).