This lecture provides an introduction to the field of international trade. We will address a number of questions such as: (i) why do countries trade and what are the determinants of their trade patterns, (ii) does trade raise welfare, (iii) what are the consequences of international trade for the distribution of income, (iv) what is the role of multinationals in international trade, (v) what are the main trade policy instruments and what are the main issues associated with the Transatlantic Trade and Investment Partnership. A good source for most of the material that we cover is the book:

Krugman, P.,  Melitz, M. and Obstfeld, M., International Economics: Theory and Policy, 10th Edition, Pearson