This chapter reviews academic research on the connections between agglomeration and innovation. We first describe the … conceptual distinctions between invention and innovation. We then describe how these factors are frequently measured in the data …, industrial diversity) that theoretical and empirical work link to innovation, and we discuss factors that help sustain these …

Scientific knowledge is believed to be the wellspring of innovation. Historically, firms have also invested in research … to fuel innovation and growth. In this paper, we document a shift away from scientific research by large corporations … innovation. Large firms appear to value the golden eggs of science (as reflected in patents) but not the golden goose itself (the …

This paper examines the relation between ownership, corporate form, and innovation for a cross-section of private and …: while most innovating firms in the US are publicly traded conglomerates, a substantial fraction of innovation is … countries, where business groups tend to be concentrated in industries with a slower and more fundamental innovation cycle and …

major changes in the American innovation ecosystem over the past century. The past three decades have been marked by a …