Private sector R&D is largely concentrated in a few multinational companies (MNCs), which thus play an important role in the creation of knowledge and technology in the economy. The mobility of labor between these firms and the rest of the economy is therefore an important mechanism for the...

Scholars examining the effect of knowledge spillovers on R&D and innovation all agree on one thing-there is a strong relationship between the firm's R&D effort and knowledge spillover. The sign of this relationship depends, however, on many things, such as the type of spillovers (horizontal,...