Inside innovation persistence: New evidence from Italian micro-data

his paper contributes the analysis of the persistence of innovation activities, as measured by different innovation indicators and explores its past and path dependent character- istics. The study provides new insights on the role of R&D investments in innovation persistence and analyses differentiated patterns of persistence across product and process innovation, by accounting for complementarity effects between the two types of innovative behaviour. The empirical analysis This paper is based on a sample of 451 Italian manufacturing com- panies observed during the years 1998–2006. Results highlight the relevance of innovation persistence. The highest level of persistence is found for R&D-based innovation activities, witnessing the actual presence of significant entry and exit barriers. Moreover, we obtain more robust evidence of persistence for product innovation than for process innovation when complementarity effects between the two types of innovation are accounted for.