, and innovation” and to provide an introduction to the associated special issue. We specifically discuss how various crowd …-related phenomena and practices — for example, crowdsourcing, crowdfunding, user innovation, and peer production — relate to theories of …, and innovation: (1) the functions of sociality (sociality as extension of rationality, sociality as sensing and signaling …

Many writers have claimed that R&D has two 'faces'. In addition to the conventional role of stimulating innovation, R … important in this catch up process as well as stimulating innovation directly. Trade, by contrast, plays a more modest role in …

The aim of this paper is to estimate the effect of research externalities across space, in generating innovation. We do … would increase the innovation of the region itself by 80-90%. Given the small size and the limited range of diffusion, we …

The importance of innovation for the economic performance of industrialized countries has been largely stressed … innovation, the productivity of its R&D and the existence of knowledge spillovers across regional boundaries. Here we develop a … model which, emphasizing "the demand pull" as a key exogenous determinant of long-run innovation across regions, allows us …