DUP activities and economic theory

This paper considers the theory of Directly Unproductive Profit Seeking (DUP) activities, examining its implications for economic theory. Two classes of DUP activities are distinguished: one where the DUP activity is triggered by policy which is itself exogenously specified (e.g., tariff-revenue seeking resulting from pre-specified tariff); the other where DUP activity endogenises policy fully (e.g., tariff seeking). Implications for both positive and normative argumentation in economic theory are considered in depth for both these classes of DUP activity.     

National welfare in an open economy in the presence of foreign-owned factors of production

In the presence of foreign-owned factors of production in the economy, the effect of trade policy changes on national welfare needs to take into account the possible redistributive effect between foreign-owned and domestic factors. Therefore, an otherwise welfare-improving trade liberalization may paradoxically worsen national welfare. This paper analyzes this important, new area of trade theory and establishes the condition under which this paradox of immiserizing trade liberalization arises. The analysis is also applicable to analyzing the effects of external tariff variation in customs unions, with full internal factor mobility, on member countries' welfare.     

International spillovers of knowledge and sectoral productivity growth: some evidence for Canada and the United States

This paper develops and tests a two-country model of a monopolistically competitive industry in which the production function shifts endogenously via national and international spillovers of knowledge. The basic version of this model implies that, in the long run, the growth rate of sectoral productivity is the same in each country. In support of this version, for a number of matched Canadian and US manufacturing industries, the paper finds that these two countries' rates of sectoral productivity growth tend to converge despite marked international differences in R and D.     

Unemployment of Skilled and Unskilled Labor in an Open Economy: International Trade,Migration, and Outsourcing

We show how international trade, migration, and outsourcing affect unemployment of skilled and unskilled labor, in a framework that integrates the Heckscher–Ohlin model of trade with the Shapiro–Stiglitz model of unemployment. Our approach allows us to analyze changes in not only aggregate unemployment, but also the distribution of unemployment between skilled and unskilled labor. As the analysis demonstrates, the unemployment rates of these two types of labor often move in opposite directions, thereby dampening the change in aggregate unemployment. Results depend on the source of comparative advantage, based on international differences in (for example) unemployment insurance or production technology.