effect on innovation. We develop a simple "trapped factor" model of innovation that is consistent with these empirical …

of innovation and imitation, we explore how inventive capability affects a firm's R&D investments, and thus whether and … innovation and the division of innovative labor among US manufacturing firms, we find that high capability firms tend to use …

frontier? This paper models agents growing as a result of investments in innovation and imitation. Imitation facilitates …

We propose a new measure of the economic importance of each innovation. Our measure uses newly collected data on … our measure suggests that technological innovation accounts for significant medium-run fluctuations in aggregate economic …

During the Industrial Revolution technological progress and innovation became the main drivers of economic growth. But …

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

outcome. The totality of possible outcomes drives the national innovation system and the returns to a particular successful … required to motivate investment attempting to turn them into an innovation. The alternative to a valuable proprietary … innovation is not the same innovation freely available but the unchanged generic technology. Growth is concentrated in any …