Patent citation data are used in a growing body of economics and business research on technological diffusion. Research … diffusing outward from the patenting entity. Until now, there exists little evidence on whether or not patent citations are a … good measure of knowledge flows. Our paper assesses the legitimacy of using European patent citations as a measure of …

issue, we build a model in which the value of an innovation depends both on the type of innovation implemented (product …, process) and on the existence of a patent protection or not. We obtain a three-equation model that links the values of product … and process innovations to the value of patent protection. This model and the feature of the data imply the estimation of …

2002. In addition, the adoption of new e-business technologies by firms creates opportunities to conduct innovation, either …

from research institutions. Using data from the German innovation survey we investigate how firms are able to exploit … knowledge from external partners for successful innovation activities. The estimation results show that the determinants of … absorptive capacity differ with respect to the type of knowledge absorbed for innovation activities. In particular we find that …