International trade grew substantially throughout the last decades and international relations became more important for the economic performance of the countries. Simultaneously new poles emerged in the international arena leading to growing competition for higher market shares. Therefore,...

There is scant evidence on the determinant factors of structural similarity between geographical spaces; moreover, it has been produced considering only the national level. The present study provides evidence on this topic at the regional level, based on the analysis of 275 Portuguese counties....

The traditional approach to evaluate trade competition considers the competition between two countries in a given destination market and quantifies it through a measure of structural similarity such as the Krugman index. We explore this topic further through the discussion of six distinct...