Theories analyzing the gains from and causes of the international exchange of goods and services. The impact of commercial policy and other government policies on these gains and resource allocation. Prerequisites: 01:220:320, 322. Major credit may be earned for only two of the three options: (i) 01:220:300, (ii) 01:220:335 or 435), (iii) 01:220:336 or 436. (Credit not given for both this course and 01:220:335)