Do national borders slow down knowledge diffusion within new technological fields? The case of big data in Europe
Using mixed proportional hazard models with fixed effects and censoring correction we compare big data patents to non-big data ICT patents that have been led at the USPTO. We find that big data patents are cited slower compared to other ICT patents. This delay fades as big data technologies mature. National borders do not systematically affect the diffusion of big data technology, also for regions which host little big data innovation like Europe.