"The purpose of this paper is to bring together some of the general problems that arise in the study of international migration between Paraguay and the countries of the Southern Common Market (with special reference to Argentina, which is the most frequent destination of Paraguayan migration).... The paper first reviews the known information about the emigration of Paraguayans, in general, and to Argentina, in particular, with some references to immigration to Paraguay from bordering countries, as well....A brief survey is made of the impact of the Southern Common Market (Mercosur) on employment and migration, and, finally, some specific problems related to the economic analysis of these migrations are discussed....", (excerpt)