We introduce a simple but flexible analytical framework in which both trade in goods and trade in tasks arise. We use this framework to provide versions of the gains-from-trade and the famous four HO theorems (Heckscher–Ohlin, factor-price-equalisation, Stolper–Samuelson, and Rybczynski)...

Global production sharing is determined by international cost differences and frictions related to the costs of unbundling stages spatially. The interaction between these forces depends on engineering details of the production process with two extremes being ‘snakes’ and ‘spiders’....

This paper tests the hypothesis that the domino-like spread of regionalism is partly driven by ‘defensive’ FTAs, i.e. FTAs signed to reduce discrimination created by third-nation FTAs. A theory-based measure is used to test contagion against alternative determinants of regionalism. The main...