linked fields. Our analysis uses 1.8 million U.S. patents and their citation properties to map the innovation network and its … strength. Past innovation network structures are calculated using citation patterns across technology classes during 1975 … predictive power on future innovation after 1995. This pattern is consistent with the idea that when there is more past upstream …

This paper introduces dynamics in the R&D to innovation and innovation to productivity relationships, which have mostly … individual effects and idiosyncratic errors correlated across equations and that differ in the way innovation enters the … Community Innovation Survey. The results provide evidence of robust unidirectional causality from innovation to productivity and …

-wage countries, especially China. Does this competition hurt or help innovation by firms? This paper studies the effect of the surge … in imports from China on innovation in the US manufacturing sector. We combine patent, firm and trade data during 1990 … positive effect on firm innovation, as measured by citation-weighted patent applications. This positive effect persists when we …