This paper investigates a specific aspect of international production linkages that, following Hummels et al. (2001), is commonly designated as vertical specialization (VS) - the use of imported inputs to produce goods that are afterwards exported. We propose a relative measure of VS-based trade...

This paper analyses the relevance and the characteristics of the international fragmentation of production in the Portuguese economy. The empirical trade literature suggests different measures of fragmentation, changing the scope of the concept and using alternative sets of information. The...

This paper compares the international trade pattern of Portugal with the other three EU15 Cohesion countries - Spain, Greece and Ireland - over the last forty years. The paper adopts a fact-finding approach, investigating the degree of openness of these economies and making extensive use of the...