analysis proceeds in stages. It begins with an exogenous rate of innovation in order to focus on the first two components. The … last two components are added by endogenizing the rate of innovation. Finally, the paper considers the role of foreign …

The pace of innovation is related both to the level of investment in innovation and the pool of knowledge from which … innovators can draw. Both of these are endogenous: Investments in innovations are affected by the pool of knowledge and the … and design of IPR affects the extent to which any innovation adds to or subtracts from the pool of ideas that are …

information. We also find that the relative importance of knowledge sources varies systematically with the type of innovation … organization that one of the main drivers of differences in productivity is differences in knowledge. We examine a new data set of … detailed measures of knowledge outputs, knowledge investments, and sources of existing knowledge. We find that globally engaged …