The article "Applied International Trade" explores different aspects of global trade and policies. It covers patterns in international trade, trade policy instruments, competitive markets, imperfectly competitive markets, and special topics like economic integration and exchange rates. The researchers use various models like the Ricardian Framework and Factor Abundance Theory to understand how trade and policies impact different markets. Key findings include the importance of factor mobility in trade, the effects of imperfect competition on trade policies, and the role of multinational production in global trade.