Innovation is often predicated on discovering useful new combinations of existing knowledge in highly complex knowledge …, and particle physics. We develop a combinatorial-based knowledge production function and embed it in the classic Jones …. This production function is a generalization (and reinterpretation) of the Romer/Jones knowledge production function …

location, which has been taken as evidence of geographically localized knowledge spillovers. In this study, we find that patent … in question, which we interpret as evidence of a significant role played by social capital in promoting knowledge … find strong evidence in support of the enduring social capital hypothesis; social ties that facilitate knowledge transfer …

We conduct the first empirical test of the knowledge burden hypothesis, one of several theories advanced to explain … increasing team sizes in science. For identification, we exploit the collapse of the USSR as an exogenous shock to the knowledge …

Tech clusters like Silicon Valley play a central role for modern innovation, business competitiveness, and economic …

The development prospects of a poor country depend in part on its capacity for innovation. The productivity of its … innovators depends in turn on their access to technological knowledge. The emigration of highly skilled individuals weakens local … knowledge networks (brain drain), but may also help remaining innovators access valuable knowledge accumulated abroad (brain …