The course will help us understand what determines the flow of goods across countries, i.e. international trade, and what determines the flow of savings and investments from one country to another, i.e. international finance. The subject is one of the oldest fields in economics and is extremely topical at the moment, with the ongoing debate on globalization, free trade agreements, the large current account deficits of the US, the prospects for exchange rates, and the calls for a new global financial architecture following the financial crises in East Asia and Argentina. In the course we will both cover the basic tools and some topics of current interest.