Although non-R&D innovation activities account for a significant portion of innovation efforts carried out across very heterogeneous economies in Europe, how to incorporate them in to economic models is not always straightforward. For instance, the traditional macro approach to estimating the...

Firms display persistent differences as regards both internal and external characteristics, and these differences correspond to asymmetries in the performance of firms with regard to productivity level and growth as well as innovativeness. This paper focuses on one internal characteristic and...