This article provides empirical tests of the hypothesis of ‘optimal cognitive distance’, proposed by Nooteboom (1999, 2000), in two distinct empirical settings. Variety of cognition, needed for learning, has two dimensions: the number of agents with different cognition, and...

The paper presents the results of a new survey on the international activities of Norwegian enterprises in the service industries. The survey focuses on three main internationalization channels: international sales, international cooperation and R&D outsourcing. The empirical analysis studies...

The paper investigates the relationship between service firms’ international collaboration strategies and export decision. It proposes an extension of the recent class of models of firm heterogeneity, intermediation and international trade according to which service firms can engage in a...