autoregressive nature of innovation. Using a large longitudinal datasetcomprising Spanish manufacturing firms over the period 1990 … the case of the YICs, suggesting that their innovation behaviour is less persistentand more erratic. Moreover, our results … suggest that firm and market characteristics play adistinct role in boosting the innovation activity of firms of different age …

innovative inputs on a sample of 3045 manufacturing firms drawn fromthe third Italian Community Innovation Survey (1998 …-2000). The interactions between fourdifferent sources of innovation - internal and external R&D, embodied and …