Goyal, Sanjeev; Leij, Marco van der; Moraga-González, … - 2003
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 …