literature. In contrast, studies on relative location tend to be weakly linked to theory, but apply relatively sophisticated … appropriateness of such models, and identify areas of potential concern. The rather weak linkage between theory and operational models …

This paper examines the small world hypothesis. The first part of the paper presents empirical evidence on the … evolution of a particular world: the world of journal publishing economists during the period 1970-2000. We find that in the … 1970's the world of economics was a collection of islands. Two decades later, in the 1990's the world of economics was much …