This paper assesses the theoretical and empirical basis for American labor union leaders' contention that imports have been a big source of job loss in the United States. It is shown, first, that identification of job losses "due to imports" is exceptionally difficult because economic growth...

In this paper it is argued that there is an important protectionist bias inherent in free trade agreements which is not present in custom unions. In any customs union or free trade agreement, one of the critical issues concerns "rules of origin." In a free trade agreement rules of origin have an...