International economics is a field of study which assesses the implications of international trade in goods and services and international investment.
There are two broad sub-fields within international economics: international trade and international finance.
International trade is a field in economics that applies microeconomic models to help understand the international economy. Its content includes the same tools that are introduced in microeconomics courses, including supply and demand analysis, firm and consumer behavior, perfectly competitive, oligopolistic and monopolistic market structures, and the effects of market distortions. The typical course describes economic relationships between consumers, firms, factor owners, and the government.
The objective of an international trade course is to understand the effects on individuals and businesses because of international trade itself, because of changes in trade policies and due to changes in other economic conditions. The course will develop arguments that support a free trade policy as well as arguments that support various types of protectionist policies. By the end of the course, students should better understand the centuries-old controversy between free trade and protectionism.
Introduction to International Economics