implement or they target younger children. We partner text-messaging technology with school information systems to automate the … gathering and provision of information to parents at scale. In a field experiment across 22 middle and high schools, we used …

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 … information maximum likelihood using two unbalanced panels of Dutch and French manufacturing firms from three waves of the …

-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 …

We study the gains from trade in a model with oligopolistic competition, heterogeneous firms and innovation, and … concentration contributes substantially to the gains from trade, mostly via its stimulating effect on innovation. Sizeable gains …

industries. The same pattern shows up in the three Dutch Community Innovation Surveys. …

This paper studies the dynamic relationship between input and output of innovation in Dutch manufacturing using an … unbalanced panel of enterprise data from five waves of the Community Innovation Survey during 1994-2004. We estimate by maximum … persistence of innovation input and innovation output, a lag effect of the former on the latter and a feedback effect of the …